What are my options to correct scars from previous accidents and stitches in my chin area? (photos)

"It's difficult to determine the best solution for you without the benefit of a formal evaluation. Generally speaking, scars can be improved with a combination of surgery and/or lasers and microneedling with PRP. Below is a more detailed reference list of the treatments available. I recommend getting a formal evaluation with a scarring expert to determine which is best for your specific case.
Options can include:
1. Vascular lasers (BBL, Yellow laser, V-Beam, Excel V)
2. Fractional lasers (Fraxel, Erbium, CO2, Halo)
3. Microneedling/PRP
4. Silicone-based scar gels with growth factors
5. Excision/revision surgery
See an expert to develop a treatment plan that works for you. Best, Dr. Emer​"

This are several potential options for correcting or minimizing the appearance of scars on your chin area. Laser Resurfacing is one of the most common treatments for scar reduction. It involves removing the top layer of skin to reveal the smoother skin underneath. The dermabrasion procedure uses a special tool to remove the surface of the skin, allowing new skin to grow in its place. It can be effective in reducing the appearance of scars. Micro-needling treatment involves using small needles to puncture the skin and stimulate collagen production, which can help to fill in scar tissue.
Feeling something under the skin could be due to scar tissue, remnants from the injury, or an unrelated issue. It's important to have this examined by a healthcare professional to determine the cause and appropriate treatment.

At least from what I can see in the photos provided, the scar appears elevated. If so, then it can be shrunk and flattened via intralesional injections of an antiinflammatory agent. Next if hypoppigmented, it can be treated with professionally performed manual microneedling accompanied by the application of pigment enhancing topical agents to better blend the scar color and texture with the surrounding normal skin. You would be wise to consult with a board certified cosmetic dermatologist scar specialist. Best of luck.