But you will, K, you will. I suspect Whirly will leap in with her special brand of wisdom. but meanwhile I offer the thought that all the frustrations are part of the process, preparing you for all the frustrations once you earn that rating. Aircraft go u/s, weather misbehaves, pilots too, resulting in untold misery that can fade as quickly as it develops. You're just getting the experience earlier than some.
If you concentrate on all the things you have achieved thus far, you will see that despite everything thrown at you, progress has been significant. You've reached an advanced state of studentship which is no mean feat, presumably while studying pretty hard elsewhere.
Grab every chance you get to go flying, even if it's not part of your master plan (spare seats do occur at short notice and just being airborne works wonders, even if you're not always hands-on) and......
.....hold that dream.