Maybe implementing some of the strategies (and/or meds) help you be happier. It's really that simple of a question. I don't think you should investigate the possibility that you have it in order to explain the past. Or to make excuses. It doesn't have to be about that. It's just about finding new ways of living that make you happier. 'Living your life' like Tiggeriffic was saying is not about having a 'reason' for perceived shortcomings. You don't need a reason for things that have already happened. Even if you found one....what then?

And it sounds like maybe you're only seeing this in terms of success. Like completing college or getting an amazing job. And THAT'S why it seems too late in the game. But addressing this might be valuable in your overall well-being....not just in accomplishments. So the idea that it might be too late in the game is driven by 'it's too late to achieve those accomplishments'. So firstly, it's most likely not too late to achieve those accomplishments. And even if it were...even if you were a senior living in a retirement home.....there STILL might be benefits in addressing this. Daily life type of stuff that's not even attached to jobs and degrees. The way you go grocery shopping. The way you organize your house. Even the way you perceive what you HAVE accomplished. Maybe you can find new ways of doing all those things that make you happier.

Enjoy your vacation. And take it easy on yourself. Just because you decide to investigate this possibility does not mean you're making excuses for the past or absolving accountability. You can still take responsibility for past mistakes while inquiring into help you might need.