Am I destroying my relationship?

Hello, I am new to all of this. I am 27 and met my boyfriend online 4 months ago and have officially been in a relationship for 3 months now. I am not used to relationships as all my past ones have fizzled out after only a couple of months. I have never felt the way I do now. I really love my boyfriend and need him with a passion. But I am scared I am getting so clingy and needy which is really unlike me. Last weekend he went away for a long lads weekend away and I hated it. I convinced myself he would cheat on me and I felt sick with worry the whole time. When he came back he said him and his mates were planning on going abroad for 2 weeks later this year and I was so upset I said I didnt want him to go. He said he wont if I feel that strongly about it but I am upset I had to ask him not to go. Should he not want to be planning holidays with me? All my mates are in relationships and they said they and their partners wouldnt dream of going on holiday without each other. Am I being too paranoid and clingy and should I just back off him. He has never given me cause for concern. He treats me like a princess and is always there for me when I need him. But I just hate the fact that he is in his 30s and yet he still needs to go on these drunken holidays. I couldn't live with it. Especially if we have children (I have one from a previous relationship). I wouldnt even want to go on a holiday with my mates without him. I did all that in my early 20s and yes I had fun but it wasn't all that I would be much happier settled down in a relationship right now. Am I asking too much of my boyfriend?

Men are never mature... Every man gets mature when they want to be. First of all if you feel that you like to go with him on vacations tell him that. He loves you, treats you well enjoy that. The issue that you wouldnt accept him to go on drunken holidays , comes when you people thinking of committing. So are you guyz committed? or just seeing each other at the moment. Its just the start, spend time with eachother. Dont think that far ahead, just ask yourself this question that would you want to settled down with any tom ,dick or harry or would you want to settle down with a person who would keep you happy for the rest of your life. There is no specific age or time to find a special one. Just calm down enjoy your relation with this boy, tell him how you feel, and you would want to go to vacations with him.