Wrong drill bit….. need a masonry drill bit and use your hammer setting on the drill

Buy one from screwfix use it clean it up and then return the same day saying your partner already bought one.

Get another now don’t drive or it will cost you more money

Just pull it out. It’s only metal

Electrics should be above water pipes

Score with a scraper…. You can either just use soapy warm water wetting it then leave and repeat the process then scrap. It will save you money ££££££ Or buy sugar soap comes in a powder mix with warm water and do the same.

You the off spring of the devil

Buy a 90 degree bend from a diy shop and fit it yourself. Cut the drain pipe back a bit if needed and push the bend on

Screw it or glue it back to the wall Painter putty along the top and paint

Set your tiles out. Clean area when sticking the tiles down. If you’re tiling on the wall. I make out the tiles by pencil the second row up fix a straight edge to the wall, then start to tile off it. Once it’s set remove straight edge and fill the bottom row

Cut down the wall with a cutting disc the take it apart with a hammer and chisel, or cango drill.

If you have your room plastered it will have cracks appear that’s normal it’s due to shrinkage and movement, all you do is fill it. May come back and repeat eventually it will stop. Pic 2???? What is in the hole??

Cap the pipes under the floor or if you know where they are further along cap them there

Yep looks like you are

I’d get some floor cleaner, clean it all first. Then buy some floor tile grout and just fill it all in. Then get a damp sponge and wipe the floor again