Tried with blockchain however it isnt accepting my payment. To do transaction more than £50 it says I have to do it via bank transfer. But it wants some details such as photo of some id such as driving license. Is this safe to provide?
If You don't want to use any centralizes wallet then go for decentralized one(one that provides private key) lEg: Bitcoin Core. Safe and reliable.
I think it will solve all your problem.
For a starter, I would not recommend core wallet as it is a heavy one. There are so many light desktop wallets out there such as electrum and exodus that are decentralized and they are so good and easy to use most especially for anyone trying to find their way around with wallets easily.
Just my own piece of advice anyway, except you want to download the whole blockchain into your system, then it is best you go for a light desktop wallet.