I used to feel the same but in the last year I got sick of saying, "that sounds too big" and just started hacking. By focusing on small bits at a time I've been surprised at how far I've gotten. I'd encourage you reevaluate what's too complex. You might surprise yourself.
Funny, I usually go in the other direction. I'll find something to automate and I'll think, "That sounds buildable in a weekend," before realizing after the weekend that it would actually be a multi-week, sometimes multi-month effort.
