I know what you're saying, I almost posted something like this before but along a different lines. Probably the biggest stumbling block to me actually living for God is lust or sexual sins online.
I don't frequent porn sites or anything but the maxim types girls and sites are another thing. or simply movies and the sexual temptations this world has.
The biggest difficulty is not from a perverted sense but the fact that sexual desires can be like a drug that makes you toss and turn at nights, sometimes I feel like climbing the wall.
Sometimes there's even anger that you have this natural desire and there's nothing you can really do about it morally. I know the Bible says deny yourself and as much as I do or have in ways again the point being this is a natural desire that can be like a drug.
I consider my dogs and cats my family and to be honest I can't ever invision myself married and I enjoy being single from the free aspects.
But being single can mean being lonely at times, and even more it can be really difficult to go through difficult and trying times by yourself with noone to talk to, a lot of emotions get built up inside that would be better off let out.
And sometimes the low time even brings about doubt if God is there.
Anyhow, if you've ever browsed dating sites you see that there's a "lot" of lonely people everywhere and sometimes browsing those sites just makes me feel better, or like I haven't been "singled" out, no pun intended, by god to be by myself, and it makes me just say a prayer for all of them and appreciate all the blessings and family I do have.
So that's not really an answer but, you're not alone in these temptations or in lonliness.
I've been single for almost 20 years, haven't had a date in almost 10 years, ect., and haven't had sex since I was 19, and I'm 40 now. That was the only time I have and to be honest though I wish I hadn't then.
I don't really pray to God for any relationships along these lines, haven't for years anyway, but these things can present problems with faith and living right.
All the people with girlfirends or married should count your blessings in these regards.
God bless you through these times though. Don't have the answers but hope it works out for you.