Hi. Greetings. The following would help you :
1. Daily use of sunscreen in day time of SPF 30 applied half hour before sun exposure
2. Daily bed time use of moisturiser suitable for acne prone skin. Reapply during lunch break during office hours.
3. Peeling agents and skin lightening agents prescribed by dermatologist for reducing tan and improving your natural skin colour and reducing spots. Also retinol based cream for dark circles
4. Evaluation by dermatologist for need for procedural treatment - this will indeed help.
5. Kindly read my blog on daily skin care on Practo health feed.
6. Daily fitness work out and loads of fruits and veggies will help loads in improving your skin.
Hope this helps. Further queries may be sent at private follow up chat.
Warm regards. Dr Govind S Mittal, excel care hospital, Bangalore.