@Anisa60 A few thoughts:
You need a gas safety certificate
You will pay capital gains tax when you sell the house (proportioned to the years rented vs owned)
You should swap from council tax to Business rates
You will need specialised insurance for short term rentals
Your mortgage company needs to be informed
Read up on Furnished Holiday Lets on gov.uk as there are some pension and tax advantages if you rent for more than 105 days/year