Don't give up quickly, you can get past the bad ones quickly if thats what you want. firstly you chat on the phone, give out a number, mobile one and preferably a spare number and phone so you only use it for this purpose, otherwise a few on them can become stalkers;
Make yourself a phony nickname, don't give real name addresses or full details, its not necessary, you need to safe guard yourself till you meet and know the persons stable.
Phone intereview them, those that won't go through it are not genuine and can't be bothered because they want quick fun. On the phone through chats you can tell what type of person he is by his language and the manner in which he uses it. If he don't show you a picture its because he's not attractive or that he's a player has ulteria motives.
Showing pictures is a good start!
If he starts asking for revealing pictures, you know where its going.
Take it as an experiment, learn from it you will improve but don't let it put you off because it will, it did me. Otherwise you will spend years putting your life on hold like me.
Meet in public open spaces, no lifts in there cars. You pick venue unless you know his choice.
Beleive me the genuine ones will stick through it all.
There are a few who have been played by women so they will feel that maybe you might be doing that......hang in there. Those that hurt leave them, you don't need there bitter past in your life.
Keep open minded try different sites, don't pay till your sure you want to approach someone and that you gain a little experience chatting to these people.
Don't let anyone manipulate you or put you down, put the phone down, delete him but record his profile name and id so you can keep tracks of same one's who keep contacting you plus they sometimes get another profile made pay again to contact you if you have blocked them. I know but some did that. Some waited a month or two thinking I forgot but I