@shibao IMO the main problem is not what you've achieved, but rather the idea that you're on a timer. A lot of those things you mentioned you can just do in your 30s just as well as you could in your 20s, maybe even easier as long as you stay in shape because your personal economy should be better.
You can try to rush it if you feel it's important to you to get something done before X arbitrary time, but I think it's better for peace of mind to just be sure you didn't miss out on realistic opportunities you've had and made the most of them, than to worry over crazy goals or fantasies.
If it's really important to you to do a specific thing like the mountain hike, and believe you'll regret not doing it, start scheduling it and seeing how you can manage days off work and budget to make it possible.