If you're going to "move on", I deign to misuse the word 'learn' like this, don't bother with a TWM Worldstar 40. Just buy the cheapest ARF trainers you can find and slap 'em together two at a time. Crashes will cost less, and there'll be less time lost between enforced groundings and continuity of flight 'training'.

But before you do, ponder upon the following two questions.

1. Is it rational thought that makes you believe changing the model to a different type is going to improve your flying?

2. Or taking a more logical approach, what RC flying skills or flight instructional skills do you have which you "feel" qualifies you to make an informed, objective assessment that you can learn to fly RC competently and safely without instructional assistance?

However, presuming that you will persist with your self-'instructional' 'method', do yourself a huge favour. Be just a ltittle bit smart by getting an RC sim and compatible cable you can use with your TX and fly the ar$e off it first. Once you have, here's a trainer you would do well to consider.

TWM Worldstar 40's cheaper but similar sibling the Sky Raider Mach I (40) is arguably the best, and certainly one of the best, flying ARF trainers in the market place today. It is well suited to 90% of potential students. 5% of the remainder do need something bigger, slower and more stable whilst the other 5% shouldn't EVER be let near anything mechanical which moves.

If you will persist without an instructor, the Sky Raider Mach I will probably be ideal for you. It's cheap to buy, goes together very quickly & easily, meets your semi-symmetrical wing requirement, will fly perfectly well on an 40LA *for ab initio training, is visually large enough to operate with safety parameters of height and distance (space ~ > time), handles wind better than most other good trainers, and is a stable flyer.

Finally don't forget to include garbage bags in your flight kit. Good luck!