What do you mean by getting 20 years of experience in 10 years? Do you mean in terms of putting in 2x the time or work, or looking for opportunities/experiences that are more cross-applicable? Or simply looking for the best growth?
I pursued 20 years of experience in 10 years of living/work because I came out of university after the dot com crash and had to become recession proof, and deliver value no matter what. It was very fortunate that the world adopted the internet, technology, etc.
If I couldn't see the future, I had to get up higher to see further ahead. Having the experience of a mid-senior technology exec 5-10 years earlier was not a career goal, but to gain a perspective to then see my own life and goals I could pursue. I had/have a lot of learning to do when it comes to business/people skills - outside of my technical abilities, and I'm sure I was inefficient at it. Today, my ability to deal with young techies is my most important skill.
How that happens was largely inefficient... I don't worship the cult of working a lot of hours though, maybe learning from a lot of hours the long way while I was young and could afford the time. This meant generally working 6-7 days a week for probably close to 5-7 years between freelancing, contracting, consulting, and building products, straight out of school. I stayed on call 24/7/365 myself for a large number of those years, never flying more than 3 hours away from me due to obligations I let myself take on (and learn to handle much better - even though I was on call, I got good at building systems and processes that didn't need me).
Your question seems to be looking for tactics, when it's not about tactics alone. Going to the gym alone doesn't make anyone an athlete who can compete at a high level. Getting better at your sport is really important, for me:
1) I got over having to work harder than I should have to. It means outworking, outlearning, and outgrowing everyone by a country mile not only among your similarly experienced/aged contemporaries, and those senior to you too. If I have to be 8x as good as everything around me to make up for the slack/mistakes/learning, I have a chance of being much better than I may have been.
2) The small opportunities along the way really do become larger and multiply in numbers over the years. You gotta love what you do, not the returns alone. You have to learn what your limits actually are. I know I can push myself in certain ways, but not others.
3) My key lesson was learning discipline before everything else, and then using that to be more efficient and effective. There's no finish line on that though, and you might need something else.
4) The most important part about getting 20 years of life experience in 10 is learning from others rather than wasting your time having to learn everything. We are not special, and no problems are special. Use your bandwidth to solve problems after getting insights from others, not all on your own.
Being in the right place in the right time also means being places that no reasonable person would be, especially for outsiders.
Happy to chat via email too, I didn't want to shortchange a reply to you.
