The habits that drain self-confidence are rarely the dramatic ones. They are quiet, repeated, and, most awkwardly, they tend to feel like forms of self-protection. That is what makes them so effective at their damage. A habit that announced itself as harmful would be easy to drop; a habit that feels like shielding the ego, while slowly starving it, can run for years. Two of the best-documented culprits work exactly this way, promising to guard your sense of yourself and instead cutting off its food supply.
Comparing yourself against a rigged yardstick
Measuring yourself against other people is an old human reflex, described by the psychologist Leon Festinger as a basic way we work out where we stand. The problem is not comparison as such but the yardstick, and social media has quietly swapped in a rigged one. In a 2014 study in Psychology of Popular Media Culture, Erin Vogel and colleagues looked at how habitual social media use relates to self-esteem. In a correlational study, people who used Facebook most often had lower trait self-esteem, and the link ran through their greater exposure to upward social comparisons, the posts showing other people apparently doing better. In a follow-up experiment, simply viewing a profile loaded with upward-comparison information lowered participants’ self-esteem in the moment.
The reason this drains rather than motivates is structural. You are comparing your own unedited interior, with all its doubt and mess, against everyone else’s curated exterior, the holidays and promotions and good-hair days they chose to post. It is a contest rigged to be unwinnable, and the scrolling habit re-enters you into it dozens of times a day. It feels like staying informed or keeping up. What it mostly does is hand you a losing comparison on a loop, and self-esteem erodes a little with each pass.
Sabotaging yourself so that failure will not count
The second habit is subtler and, once named, uncomfortably recognizable. In 1978, the psychologists Steven Berglas and Edward Jones identified what they called self-handicapping: the tendency to create an obstacle to your own success so that failure can be blamed on the obstacle rather than on you. Leaving the work until the last minute, not really preparing, staying up too late, telling everyone you are not even trying, all of these set up a ready-made excuse. If you then fail, it was the handicap, not your ability. If you somehow succeed, you look all the more impressive for having managed it against the odds.
In the short term this protects the ego, which is precisely why people do it. Over any longer stretch it is corrosive in two ways. First, you are deliberately worsening your own chances, sabotaging the very performances your confidence could have been built on. Second, and more insidiously, you never collect clean evidence that you can succeed on your merits, because every outcome is muddied by the excuse you built in advance. Confidence needs honest proof of competence to grow, and self-handicapping guarantees it never arrives. The tendency is strongest, fittingly, in people whose sense of their own ability is already shaky, so the habit tends to trap exactly those it hurts most.
Why both habits starve the thing they mean to protect
The two share a structure worth spelling out. Genuine self-confidence is fed by two things: a reasonably fair assessment of how you are doing, and real evidence that you can handle what you attempt. Chronic upward comparison poisons the first, feeding you a distorted and permanently unflattering read on where you stand. Self-handicapping destroys the second, ensuring your successes and failures are too contaminated by excuses to tell you anything true. Between them, they cut off both of confidence’s food sources while feeling, from the inside, like sensible self-defense.
This also explains why the usual remedy, a round of affirmations in the mirror, tends not to work. The problem is not a shortage of nice self-talk but the presence of two active distortions. The counter is subtractive rather than additive: compare less, or at least compare against your own earlier self rather than a stranger’s highlight reel, and stop pre-loading excuses so that your efforts actually mean something again. Confidence, on this reading, is less something to manufacture than something to stop quietly undermining.
What the evidence does and does not settle
A few honest limits belong here. The social comparison research is partly correlational, so it establishes a reliable association more than a simple one-way cause, and not all comparison harms, since comparing sideways or downward, or drawing genuine information from someone ahead of you, can inform or even motivate. Self-handicapping is a tendency rather than a universal law, more common under uncertain self-esteem, and it does not describe everyone. It is also worth remembering that self-esteem itself is not the master key it is sometimes sold as, since high self-esteem does not reliably cause success. These are averages and patterns, not verdicts on any individual.
Within those limits, the picture is clear enough to act on. The things that drain self-confidence are less often big blows than small, repeated habits that feel protective, a scroll that quietly rigs the comparison and an excuse that quietly spoils the evidence. You cannot affirm your way out of either. But you can notice them, and confidence tends to recover on its own once you stop feeding it the two things that were starving it.