I feel the same way some days, I have the time to do it, but not really any money. I have to rely on my Dad to buy me books, if I could afford it I'd take a class. But for me it really comes down to my age (I'm 26) and whether or not at my age I can really retain a language. I took 2 years of Spanish in high school and didn't retain any of it, but my therapist actually gave me a possible reason why in which she basically said that I didn't have a personal investment in it like I do with German. Due to me liking music in German and have friends in Germany, I'm more invested in learning it than I was with Spanish. But I didn't hate Spanish, I did like it, just didn't retain it.

I think it's at least worth it to try with a new language.

My other problem is wanting to wake up in the morning knowing the whole language. My brain doesn't seem to get that it'll take a few years to get decent at a new language.