Whatever you do, stick to it.

I find learning any languages very rewarding, but you do need discipline to progress. If you constantly hop subjects when you're bored, your learning curve will never really catch up.

Find motivation and make a resolution not to abandon it for any long period. Don't do the OCD thing to study 12 hours a day three weeks and burn out, only not to touch it in 2 months. A steady, disciplined approach works SO much better.