I have been growing my hair out for the past 3 years.  The hair on the back of my head is a little past my shoulders and my bangs are around my nose. I want to get my hair so that it is all the same length and is down to my scapulas. Now when I get a trim every two months the tips of my hair are dry. I thought I had a good routine going but I guess it just isn’t enough so now I need your help.
-      I have 2 showers a day. (morning and evening) I only use conditioner in the morning and at night I just rinse it with water.
-      I wear a hat almost every time I go out.
-      I don’t put any products in my hair (example hair gel and so on)
-      I let my hair air dry.
-      Every once a month I leave a conditioner in my hair and go to bed(stays in for about 6-8 hours) then I wash it out with shampoo (this is the only time I use shampoo and right after that I put conditioner back in my hair and wash that out again)
-      I eat eggs almost every day (heard that is good for the hair)
-      I drink water all the time
Hmmm…. Can’t think of anything else right now. I will post more when they come to me.
Should I invest in a wide tooth wooden comb?
Any recommendations on a deep conditioner that I can leave in my hair over night?
Are biotin pills worth it?
What do you think I could do that would keep my hair from drying out at the end of every two months? Thanks

I'd also recommend trying either a leave in conditioner on the ends or oiling the ends.  If you don't have any splits and you only have the dry ends, then regular oil or leave in moisture should help a lot.

A wide toothed comb is the only thing I use to comb my hair.  No brushes, just my fingers or my wide toothed combs.  You don't mention if you have split ends.