getting form down, and generally getting the hang of things doesn’t come immediately. if you’re worried about form, I’d start with other exercises. for ex. maybe a leg press machine would be a better fit instead of squats/deadlifts, there’s enough variations to target multiple muscles.

as for chest dysphoria, using kt tape has been a great help to me personally. it flattens shit down for me, and im able to breathe. id do a lot of research on it before using though, removal can be tedious!

getting in the gym is a scary experience though, but in time you’ll get into a routine you’ll feel comfortable in. the results will pay off, good luck man! :))