What are the most realistic dermatological treatments for people in their 30s?

These days, when I look in the mirror, I notice fine wrinkles and elasticity, so I'm worried about it for no reason🥲

I'm still worried about major surgery, but it seems like it's too late to just give up.

People around me tell me to try Rejuran, Toning, and Skin Booster one by one, but there is so much information that I am more confused.

I'm interested in vitamin C and retinol for home care, but I've heard that they can cause problems if used incorrectly, so I'm hesitant to use them.

For people in their 30s, what is the ratio of home care to treatment?

If there are any procedures that you think you're really glad you tried, or if there are any treatments that you didn't have to do, please share your honest reviews!