Craft
I think it's important for an actor to see the work they've done because every time you revisit a work you come up with a new way of improving it. It's a good way to brush up your craft and your skills, so I think it's a good thing to do, keep seeing your films.
If it's flipping hamburgers at McDonald's, be the best hamburger flipper in the world. Whatever it is you do you have to master your craft.
You want to be a bit compulsive in your art or craft or whatever you do.
I think it's important to really press on with the song writing and just go with it. There's no code, there's no craft... it's just let yourself shine through your music. If it's meant to be loved and heard, it'll happen.
The key to my perseverance was absolutely loving the craft of acting. I just figured that if I kept doing it, at the very least I would get better at acting. Even if I didn't become a tremendous success, as long as I knew I was improving and getting better, to me, that was success.
The top athletes are consummate pros who work obsessively at their craft. Approach yours the same way.
Make gifts meaningful by putting the time in creating them, whether baking and cooking, or in making arts and craft. It will all have more meaning for the giver and receiver.