Sincraft
First off, sorry to hear about the crash. I know it's easy to rush into things but one thing that is very important with any plane is get the engine running reliably before you even THINK about taking off. You need to make sure it is somewhat broken in and has good transition from full power to idle and from extended idle to immediate full throttle. You should be able to let it idle for at least 30 seconds and quickly move the stick to full throttle. The transition should be smooth. If it sputters, it's likely that the low speed needle is too rich. If it simply dies, it's usually that the low speed needle is too lean. From your description of not being able to chop the throttle all the way down after running a few clicks up or it will die, it sounds as though the low speed needle is too rich which is causing the engine to load up with unburned fuel. The high speed needle on a 2 stroke can usually be set by ear, just run at full throttle, (be sure you have the plane secured!) and start out with a somewhat rich setting. Lean the high speed needle a click or two at a time and wait for a change in rpm. Keep doing this until you hear the rpm's start to decrease meaning that the mixture is now getting too lean. Richen back up slowly until once again you reach the highest rpm's and then RICHEN it a couple more clicks. Now go back to idle and re-check the low speed setting. Have someone hold the airplane and point it straight up while at full throttle and make sure the engine rpm doesn't drop, if it does, richen the high speed needle a little more and try again. Once you have all of this dialed in correctly you will find that the engine will be reliable at any throttle setting and will start very easily. With a reliable engine you can now fly the airplane without having to worry about a deadstick situation, (unless you run it out of fuel of course). The other thing you need to be aware of is that if you are in another deadstick situation, DO NOT use up elevator until it's time to flare right before touch down. If you have enough altitude to make a turn toward the field make sure it is a very slight bank and use VERY little elevator. Keep your inputs as small as possible. The key is to keep all the airspeed you can, pulling excessive up elevator will lose too much airspeed VERY quickly and the only way to get it back is to dive IF you have enough altitude left. You have to remember that the elevator, just like the rest of the controls, only work when there is sufficient air moving over them. Good luck and try to get some help at the field.