Want to buy my first board!

so after a week away with family I got to get back on a board, so now I actually can catch most of the waves I was trying to, and want to get my own board so I can start getting used to the same board when I go, as well as actually wax the board, as the rental place does not do that, and my understanding is that make a huge difference. That's as much as I know about that, not a clue which board I should get, other than I would like a blue one.
I am 5,11 somewhere around 65kg (about 130lb) live in the northwest of the UK, main place I will be surfing is surf snowdonia in wales, lake in a quarry with a paddle that goes up and down makes a wave, they have a shop there, but the markup is beyond crazy, looked up a couple of the wetsuits they sell, they have them more than double the online price (around £650) i didn't even look at the boards after that.
any and all advice would be great!
Thanks in advance
I am 5,11 somewhere around 65kg (about 130lb) live in the northwest of the UK, main place I will be surfing is surf snowdonia in wales, lake in a quarry with a paddle that goes up and down makes a wave, they have a shop there, but the markup is beyond crazy, looked up a couple of the wetsuits they sell, they have them more than double the online price (around £650) i didn't even look at the boards after that.
any and all advice would be great!
Thanks in advance