Helllo Sir...I've Suffering From Scalp Infection Since Two Years. 2years

Helllo sir...I've suffering from scalp infection since two years. 2years when I used to Oiling my hair with mix oils.....after that I dont wash my scalp saily....so slowly2 My scalp have began much whitish dandruff type prblms begans.....
Now my scalp is itching very much and the problems is still remains......my scalp have very oilt...due to infectuon
Plzz sir help me unless i'll sucide :(