hi

sorry about your bad luck. you should always have the help of an experienced flyer unless you have a lot of stick time and can take-off and land with no problem. once you get the plane trimmed for straight and level flight this will solve 90% of your problems in flying.
I would recomend one of two choices on a trainer. if you wanted to build the RCM basic trainer or RCM advance trainer are good choices. on an arf the avistar is a good choice. have seen many newcomers in our club use these and haven't seen a bad flyer in recent years. do get the help of an instructor regardless of which choice you make. by building the RCM trainers if you crash the repair is easy and not expensive, but it you get help and get the plane properly flight trimmed you will be using it for years.

good luck and happy flying

joe