If it’s not been cultivated for a while then I’d look at skimming the weeds off tyhe top and then renting a rotovator for a day to break it all up a bit.
I would avoid the temptation to rotovate too, 1st big mistake I made too, looks great but come next year you could have more bindweed than you know what to do with 😉
As thepurist mentions in his post, it will only generate more work in the long run.
The best tip I could think of is to pace yourself, its very easy to go mad in the first month or so digging over the whole plot and planting what springs to mind just to fill your plot up, then get bored.
We see it all too often here, new people start, dig everything over, then for whatever reason, never turn up again.
Get chatting to you neighbours, they can save you a mountain of work, with advice and pratical help, never buy what you cannot borrow too 😉
Last tip – Tea, make sure you have planned your Tea making facilities on site well, make brews for your neighbours, when you brew up 😉
Imho, you are far better off taking a slower approach and work on a small area of your plot, double dig the plot, trying to remove all the weeds you can, Spuds as mentioned are a great crop to start with & will help break up your soil for you.
Do you know anyone who keeps horses or cattle 😉