And what's the strongest move(both gym and/or calisthenics) that you can pull off?

I've heard that many people at a high level in calisthenics don't track what they eat, but wouldn't tracking help improve their skills faster? I mean, by ensuring they get enough nutrition

I've been practicing fingertip push-ups for a while. I can easily do them on three fingertips and on my thumbs, but doing them on just my middle and index fingers is really difficult. Right now, I can only hold myself up on my knees in the push-up position. Do you have any tips/progressions that would help to achieve that two finger push up ?

I am spending the next few months locking in and giving it everything that I have got. Is there anything that anyone in here has found particularly valuable that I should try?

I dont know how to improve the form on my l-sit What would i need to do?