headlight and reverse light problem

[Patches]

left headlight doesnt work, brand new headlight too
last one was 1/4 full of water
but it does come on when i turn the highbeams on

and my reverse lights dont come on either

iv looked around and search didnt help me.

sorry if there is something on here about it and i didnt see.

[Patches]

well i think i found something on how to check about my reverse lights, just havnt found anything on my headlight problem

[McGyver]

im guessing you have already checked the fuses?

[Patches]

checked all the fuses and they were all good
any other advice?