First time buyer disappointed.

Hi, I have purchased our first home in UK and i am so frustrated and disappointed. In 2019 we got our house . At that time we were exited and clueless about housing in UK. We are foreigners no one to help or advise apart our mortgage advisor. When we first seen the house it was looking good. I wanted to take a level 2 surveyor but my mortgage advisor said it just a waste of money . Every bit of the house was recently been decorated .little i known that evry bit of work done on the house was made just to look good for the sale. 1st year i had to strip and completely redo the bathroom because it started leaking and mold come up everywhere. There was naked brick under the pvc panels. Linoleum on the floor that imitate tiles on top of old existing tiles and a fake lowered ceiling that was hiding a full ceiling of mold( it was like the hole ceiling was painted in black) 2nd year we redone the kitchen. Same problems. On the ceiling had plaster board on top of artex ceiling that was started to pull down due to weight and terrible installation, on the walls 2 layers of wallpaper that was covering cracks . I have a battle with slugs in my living room that i don't know where they are comming from. I suspect there is moist under the house or my chimney is leaking. The roof needs replacing but for the time being i just had repairs done .Saving for a new roof Every bit left on the interior of the house (bedrooms, landing , living room) had wallpaper on the walls and ceiling that was covering all the shit. If you get to buy your first house don't cheap out on a surveyor . It may save you thousands.