okay.
1. always always remember that Hashem loves you very very much, more than you can ever imagine, no matter what you do or what He does (or seems to do). bishvili nivra ha’olam–you are worth the world. Proof of His trust in you is that you woke up this morning. He obviously has some faith in you and believes you can accomplish your mission in this world if He kept you here for another day. in modeh ani, “raba emunasecha” is talking about Hashem’s faith in you to do your job.
2. having said that, i can sympathize with you on the friend issue. what i can tell you worked for me was to work on my self-esteem and realize that i can give to others too. friendship is not a one-way street. try to reach out to others who need friends and you may be surprised at what you can change.
3. hatzlacha. we’re all cheering for you 🙂