That's very sad to read. We all come to that point of giving up, 3D world isn't something that you can learn in a day or two, its a process, journey... call it whatever you want, but in the end, I think its worth the time and trouble. Try to take a rest from it and then come back, dont give up just because you think you reached unbreakable wall. We all been there done that! What drives me is this community, sharing our work and knowledge and in the end, helping is something good and positive, we as artists have privilege to make this world a better place, with helping or with our work.
Dont take this challenge to serious, its here so we can have fun not stress. :)