IMO, build anything and don't do it for the future. Build something that is interesting to you personally right now. Don't build for your resume, or fame, etc.

IMO, build anything and don't do it for the future. Build something that is interesting to you personally right now. Don't build for your resume, or fame, etc. Projects like that never get completed, more often than not. Also, I find it is helpful not to tell people anything about a project I'm working on in the early stages. Something about keeping it a secret makes it a little sacred to me and keeps me from taking satisfaction from work I haven't yet done.