It feels like ADHDers hear "always try your best", and interpret it as "if you're not putting in 100% of your effort, you're not actually trying". But putting 100% into something leaves no remaining energy for anything else (including caring for yourself).
This seems to manifest in 3 main ways for ADHDers: 1. Absolutely burning out trying to put 100% effort into all the things you've committed to (which is impossible). 2. Overachieving in one area (100% energy in) and failing at the rest of your life (0% energy left). And...
3. Refusing to put 100% into everything because it's obviously too hard, but then thinking this means you're "lazy" or not trying at all, and feeling guilty for any time you spend on yourself that's fun.
You gotta start seeing your happiness, connections, and health as areas worthy of your energy. Success should not come at the cost of your wellbeing, and tbh, you probably shouldn't interpret it as success if it does (I'm sorry).
Joy, connection, and rest, can and should make up a good proportion of what you spend your energy percentages on. Unlearn the belief that you have to try your hardest at everything for it to really count. It all counts.