You founded 2 startups. You're already 2 steps ahead of those who founded zero. You have knowledge of the full life cycle of a company. You allegedly failed but failure (like success) is subjective and you did gain knowledge you would not have had you "succeeded". Again that puts you a few steps ahead of others. You can go at it again - do another venture. Or you can join someone else's idea (which you believe in) and do it together. You can consult other startups with who are just starting out. You can take the time to perfect one of the skills you acquired. Hopefully in the area that you found most attractive and interesting. You are in a good position. You did not fail.