Betty's back garden sun trap.in hillingdon

It's 5 meters on one side a d 25 meter long there is a smaller strip.on the left .it's very uneven I could help with the cost of a rotovater .it needs clearing ..I.v got a tap and some power talls and the shed need a good clean I.m willing to.help and flexible when u want to plant ect I Don.t want anything..just some much needed encouragement..I.m not green fingers but so.e one may like the challenge ..I would like some flowers .but u may grow what u like ..I'm hear 3/ 4 days a week 5/6 hours at a time ..I just want so.e to.enjoy it ..tap shed tools thanks angie