Just turned 29 years old and feel weird.?

know I am not old. I am still young but my birthday was kind of a letdown. I had a date the night before that went bad because the girl tells me she has a b/f midway through the date, which I had no idea about. But I let the date go on anyways. My friends had a party for other people's birthdays at a club and I got there so late lafter the date and I wasted my night. I could have celebrated with them. Now I can never get that day/night back. Last night was ok, just went to a little house party and met friends at the bar but didn't make a big spectacle for my birthday, still felt sad. I just feel like no one cares and I am getting older. I don't care about settling down or any of that, not yet. I just feel like I can never get this time back and I can't. Now I feel like this is the final pathetic stamp of my 20s. I want to make up for it next week and weekend but it just seems so forced. I am so sad, how can I cheer up? And just getting over it, aint gonna help.Thanks!