Hi ! I suggest you consult a dermatologist in person as you have different problems to be addressed . You might require procedural treatments for your skin problems . The type of procedure(s) and the number of sessions required can be determined only if you meet the doctor.
Next Steps
Start by using a doctor prescribed sunscreen with an SPF of atleast 30 .The sunscreen should be applied once in 3 hours especially between 7am-5pm,the first application should ideally be used 20 minutes before you step out into the sun.
Health Tips
Do not use over the counter products that are not doctor prescribed