hmm.. depends what you want man, some guys i know make good tracks with their headphones..

if you wanna build up your studio, you should invest in it then and focus on that

you cant go wrong with the good old KRK's though lol, i own a pair of KRK's 

sound on sound, computer music magazine, etc do reviews of equipment if you want opinion

cool just had a look and i can tell you are dutch by your accent lol

you just freeze the tracks and convert to audio

you can do it on audio but i prefer to do snare build ups on midi cause its much easier to edit the notes

they've got the normal build up and uplifters with it, automation and eq

its the 1/4 notes for about 5 bars then 1/8, 1/16, etc  you have to play around a bit

if you use your ears, try think if its more than 1 snare, llan layers a lot, he says in his interviews

with samples and sounds, you cant get the same sound unless you are using the same sample or synth which is very difficult but you can get close to it, so try get your own sound

whats holding you back? you have to shut off those voices in your head i think

is it the metronome? is your software cracked properly? no pun intended lol

try set up some all ready pre made reverb settings so you can just drop it to save valuable time, you should already have settings in your return channel or bus in a template

the most important things in reverb are decay, pre-delay and size, dry/wet

heres an AMA by steve duda which will help

https://www.reddit.com/r/edmproduction/comments/yry3t/i_am_steve_duda_ama_about_edm_production/

joe la porta is a great mastering engineer
theres many but he has mastered for tiesto, above & beyond, BT, armin van burin, theres a list of his CV on his wiki

mastering is an art of itself, those engineers dedicate their lives to it!