Are there any non-surgical procedures to help with my double eyelid crease?

It's a valid consideration to dissolve the injected filler and potentially pursue a Lower Blepharoplasty SOOF. However, given your young age, a more conservative approach like a standard Lower Blepharoplasty would be advisable. This approach involves addressing excess skin and fat, providing...

Co2 laser would be helpful for you. You should consider consulting your primary plastic surgeon. Typically, Ectropion is indicated by lower eyelid pulling outward. So, Co2 laser should not affect it in any way

Lumps can often appear that be be related or unrelated to surgery. Some common causes of bumps include the following: chalazion (blocked oil gland), prolapsed lacrimal gland, lacrimal gland cysts, and hypertrophic scarring. I would recommend seeing an eyelid specialist to determine the cause.