<human>: Summarize the given text in a few sentences.

My mom raised me by herself, but my dad did paid child support and even sent me gifts over the years, til I was 18. After I turned 18,he wrote to my mom that he would only keep in contact with me if I wanted to. So for a while I did, but I didn't really know what to say then mainly because I didn't really care anymore about getting in contact with my dad since he never called me or visited me once. So my contact with him kinda died off after a round of 3 or 4 emails. However, it was about two or three years ago that my mom told me that he really cared about me but he thought it would be better if he tried to stay out of my life as much as possible, since he had married afterward and had another child. He thought this would cause me less grief, I wish he hadn't(I tell you if I could have seen him even once a year I would have been a much happier child). 

I'm now 23 and getting a passport to go to Japan but I need information from him but I don't want it to sound like all I want his information. I've always wanted to get in contact with my dad, and stay in contact with him. But I kinda blew him off in my last round of emails. What should I do reddit? What should I write?
<bot>: I need information from my dad, but I blew him off in my last emails. Just to find out from my mom how much he cared, and don't want to sound like an ass just asking for information