Ha!!!
I've no idea what I'm up to with the secateurs other than following the wording in one of my books which to be honest is as clear as mud to me asI am new to all this fruit growing!!!
I keep peeking at the neighbours plants and try to match mine to theirs!!

I reckon any tree would revert back to a funny shaped tree if you stopped pruning it, although it'd probably be a bit lop sided???

Perhaps I'm the one who should be asking your advice????