Microneedling + Sagging Q&A

I'm a 41 yo man. I'm losing fullness in my face, sagging, as well as crepeing in my neck. I'm considering micro coring and/or micro needling with RF. Can someone help me understand the pros/cons of each and what they would recommend? I'm clear that anything shared here needs to be taken in context that none of you have seen me in person. The feedback will help me round out my POV after I see a few doctors in person. Thank you in advance!

I had chemo and the toxins were so strong that they aged me several years overnight. My facial skin is loose and looks puffy/saggy maybe and my eyes are rounded like an old persons instead of long and almond...devastated, just trying to get my face back

I recently used a Retinol Eye Serum which burned my eyes and left them saggy and a little baggy. I damaged my under eye skin basically. Its been a month and it doesnt seem to get any better. Can microneedling be used on the delicate under eye skin area? And if so, is it safe to do the procedure given that my saggy eye skin is due to damage rather than genetics or natural aging?

I had a micro needling procedure with a nurse practitioner. It was regular micro needling not with radio frequency. During the procedure there were some broken capillaries that bruised underneath my eye area. Within the first week after the treatment I noticed that my under eye area looked significantly worse it looked more aged, hollow, loss of volume, saggy and wrinkly. Can this happen if the micro needling was done improperly?

See photos. How to get rid of this sagging without going under the knife.

I'm a 37 year old woman who is 4 months postpartum and exclusively breastfeeding. I plan on breastfeeding for at least a year. My face is looking much worse since giving birth and I'm frustrated with it. So far, I've done one microneedling with radiofrequency session with a Licensed Aesthetician. I think this microneedling has its limits of how much it can improve my problems. Is there anything else I can do? What are my options when I'm done breastfeeding?

is it true that it has a filler effect and that it improves skin quality and sagging? i am considering doing it, but i do not want to waste cash on snake oil...

Can it fix sagging of the skin?

Starting November 2015 I had my first chemical peel and then I had 3 Microneedling sessions after, month apart each. It has been 3 months and my skin is worse than ever. The small punctures are still there. My skin turns red after working out and sun exposure. My skin has always been dry and I feel like my skin is the porcelain type and doesn't do well with microneedling. It created more scars. It has even made my sagging jowls worse. I am not interested in fillers or botox.

My dermatologist recommends that I truly microneedling for sagging skin and some lines on my lower face. Is it worth the investment or would another treatment be better.