I will add something to it - many people want are afraid that they will regret somethings in the future. But at the end you won't regret a thing because you will not feel a thing. You are going to be dead and as hard as it is to imagine it - you won't think or feel. If you are religious you may have more thoughts about what is the next stage in your after life, but in any case it won't be thoughts about your current life. Just live each day to it's fullest and that's it.