My skin looks worse 2 months after home microneedling. Have I ruined my skin?

While they do make home
microneedling devices, this is not something that I would recommend.  Using a medical-grade device in office under the supervision of a licensed esthetician is
going to deliver much better results.  I also recommend having
a consultation to make sure that microneedling is actually the best treatment
for you.  You may be a better candidate for
laser treatments.  Due to your sensitive skin, I also recommend for you to
be guided by a licensed esthetician or skin care professional as to what skin care products should be used for your skin type to maximize results.

without pictures we cannot make suggestions. You will need need proper skincare and typically that includes at home peels like cosmelan or enlighte, vivatia foam, restorsea 10x and isidin body lotions.  we do free skincare consutations daily from emeragecosmetics.com see link.
Burns need a combination of:
1) healing lasers and light such as aerolase or laser genesis and LED therapy with light stim
2) topical growth factors, stem cells, antioxidants
3) oxygen facials
4) platelet rich plasma and A cell topically
5) sun protection
6) vascular lasers for redness such as venus versa IPL, excel V KTP, and pulsed dye laser/VBeam
After 6-12 weeks you can treat for hyperpigmentation with cosmelan peels, hydroquinone, retinol or non ablative lasers like clear and brilliant or radiofrequency like venus viva.
Please see a laser, scarring and burn expert.
Best, Dr. Emer

The treatment plan for microneedling depends on a long list of factors. Please contact a qualified provider or a board-certified physician with extensive experience in these procedures.