2017 was a decent year for me. I learned a great deal about crypto in general and I feel better prepared for this year. I do think 2018 will be a better year for all of us because more and more people are getting into this space, and as a result the market is growing. I missed the BTC train, but it's okay.

One thing I learned is that there will always be other opportunities to make profit. Don't focus so much on what you missed, but what other opportunities you can find.
I have started very late part of 2017 so I cannot say a lot of things about it but I have learned a lot of things that you cannot buy with money. At least I learned how to choose good coins either investing or participating to their campaigns.