I pinned up everything that I could. (At your length, it was everything in front of my ears; for a faux half-up.) I did lots of variations of these, and French or Dutch braided my bangs often. My hair is super slippy, and I used teasing and/or hairspray sometimes to keep it up. FWIW: I didn't wear my hair down for a really long time, probably 8 months or so, and didn't trim.
You might be able to get a victory roll going in the front, and tie a bandana around the rest?
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