It was long and tedious but I did it! It took me:

-20mins Dissassembly

-30mins Battery Removal

-15mins Installing New Battery

-20mins Reassembly

(Take note, this was my first battery swap)

Here are a few tips for beginners (so you dont make the same mistakes I did):

-Organise your screws propraly

-Be very careful with the removal and installation of the adhesive strips (its very tedious)

-Reinstall the screen from top to bottom (VERY IMPORTANT, BELEIVE ME) because otherwise you’ll need to remove it and put it back. Also, watch out not to crack the plastic besel aroud the screen.