Hey Buddy
I too am 23 and had my HT of 1500 grafts a bit over 2 months ago and in my state of mind I was going to do it, I had done my research, Thought it over and I have not looked back.
Dr Martinick and I talked about the future and did bring up my age but seen that I had a mature approach to it and we decided on a Reasonable hairline which im happy with and left enough donor hair so that at worst I may have a bald patch on the back of my head when im older which does not bother me at all.
I use toppik and its so easy and helps alot, I wore it out the other night I left it on to see what it looked like in the sun cause people say it looks weird and it does, looks like someone put flower through your hair (Can anyone confirm my thoughts?)
To me your hairline doesnt seem too bad, Some good photo`s with a flash would be good to get a proper idea
Hope this helps