Everywhere on pinterest it's "Oh I found this at a thrift store- I knew I could paint it!" and it always looks amazing when finished...

but before DH and I got married I painted our bedroom set and it was awful. It was really ugly and I hated it. Since them I'm so scared to paint furniture and fear it's a waste of money and won't turn out.

I bought two bedside tables at a thrift store last year for $35 - great find and they are actually kinda cute. But they're an ugly brown and I know they have so much potential but I'm scared to take the plunge!! I want to paint them yellow.

Anyone else?
How about sharing your painting tips, and before/afters??