Life is an unwritten path - there will always be crossroads and obstacles to face - along the way everyone picks up a few bad experiences some are lasting while others are more easily forgotten - there are also milestones and achievements that is what people tend to overlook - I do not know one person who if given the chance wouldn't go back and do something differently - hell I would never have picked up a cigarette 25 years ago but I did and it took a quarter of a century to put it down for good -major regret smoking 25 years (over 182,000 cigarettes) more significant achievement NOPE for the next 50 years +
You have to choose which perspective to live by pain, suffering, regret or acceptance, forgiveness and moving forward - only then will happiness be found.
You are still on this side of the grass so now it is your choice to be happy or scared - I say take the reigns and choose a good path for you.