My first Greenhouse project

Hi all, completely new to this subreddit so be gentle.
I have never gardened before, i have never grown anything before, i have certainly never been in a greenhouse before. However i bought a house at the back end of 2024 and it came with a glass greenhouse. At first i thought nothing of it, however i love to cook and with the sunshine just starting to appear here in the UK I thought i should make good use of it to grow my own food, or at least try to.
The previous owner of my house died a few years ago and i'm aware the greenhouse hasn't been stepped in for 5 years so it's in a bit of a state. I have taken a few photographs for reference but what i'm after is some general advice on how to get this in a fit state to house some plants as well as some advice, tools/kit i'll need and some good easy fruit, veg and herbs i can grow as an absolute beginner. I've done some research online and i regularly use and would get use out of the following plants
Basil, Chives, Parsley, Thyme, Cucumber, Courgette, Strawberries, Lettuce, Spinach, Peppers. There are definetely others but just picking some that i have seen on websites i've read.
My garden is south facing so i'm hoping this will work in my favour. I am based in the UK.
There is one side of the greenhouse which is empty and the other is 2 shelves one higher and thinner and the other is an alluminium frame with three "trays" (not in photo 2). Each side is about 180cm by 50cm.