The best advice I can give you is to watch some videos before and while you do it; It's not hard, but it does has it's quirks and tricky stuff...
I had the exact same problem with mine (broken hinge) and I tried to replace the shell without whatching any videos; this resulted in a lot of...
I haven't played my Switch n a month or so, just been playing Xbox, and just picked to play lil and Damn that A and B, X and Y being reversed always gets me.
@BigOnYa:
I haven't played my Switch n a month or so, just been playing Xbox, and just picked to play lil...