No amount of logic is going to fix your problem of feeling down when you feel rejected, because that is an EMOTION. And you can never heal emotion with logic.
Call up a friend and say, "What's up?" and talk with him until the negative emotion of rejection
I don't agree logic won't help. Part of this guys problem is he is lacking in logic related to the way game goes. At least we can fix ignorant!
Logic assists us in getting thru the emotions of rejection. If you know there are tons of girls out there and that everyone has flaws, does that not help you realize that being upset over one failed pickup/girl is ILLOGICAL and therefore you should not FEEL UPSET?
I do frequently use the "phone a friend" as well, but that's not the only option. Part of the problem in this community is being too tied up with girls. We sometimes miss the part that working on ourselves is more valuable than just gaming girls or just finding something to do that we enjoy!
I bet it was helpful just to come to this forum and type up your post! How much material have you read about pickup? There is so much to absorb I bet you haven't scratched the surface!!!
Here's another logic piece to cure your irrational emotions; The best 'players' will tell you their conversion rate is 10%. That means they get with 1 out of every 10 girls they've hit on. From the way you type, my guess is you haven't even hit 9 yet.