When I first had my 7, purchased 2nd hand, I knew nothing about cars and was frightened of touching anything, but with the help of friends/club members I began to learn and do little bits myself. It is all pretty simple and just needs confidence which you will gain over time. Sadly getting friends round at the moment is not possible, but then again Caterham, I think, are closed. I'm now happy to carry out my own service and 'sprint' the car. The best learning bit for me was completely rebuilding the 7, with the help of friends, as that taught me an awful lot.