Am I too young for a mini lift? 31 year old (Photo)

Based off your photos - the things you complain about are very minor as you still have nice high cheek bone structures. An endoscopic midface lift could potentially address your lower face enough to where you might buy yourself time (hopefully 10+ years) before you need a neck lift. If there are fine lines around the mouth or under the eyes, nanofat grafting would help give some volume and CO2 resurfacing to help tightening the skin and maybe erase some of the lines. (Definitely speak to your surgeon about these options and whatever fillers / procedures you've done - you might have to dissolve the fillers prior to any procedure).

Please do not do the threads. I would suggest micro-needling with radiofrequency, like Secret, with Sculptra injections added to the treatment. This will help tighten and improve your overall skin.

Thank you for your photos. Your facial shape, contour and symmetry is excellent. Your jawline is straight and smooth. Your neck looks excellent. While it’s always possible to do a mini facelift, I don’t believe it would achieve the results that you’re looking for, and it comes with its attendance cost, recovery, and incision lines. I would continue to investigate non-invasive options.