BTFB - ask away on here -proper virtual bike shop here - you'll just need a few big spanners and stuff.
I remember guiding Maz through some jobs - he was well chuffed, and if now pretty proficient in doing his stuff.
Remember pedals and the like, the thread is 'deliberately' the wrong way on the drive side so it doesn't undo -
Anti clock undo - for most applications, but drive side, clock undo (pedals). They undo in the opposite direction to axel rotation...and stuff.
Bikes aren't that tricky to look after - just be patient, and NEVER rush it....it's a precision machine that you rely upon...look after it, learn about it, and it will reward you with 100% performance/reliability !