We HEAR you! Boy, do we hear you...lol. This is one place where we all struggle with exactly the same issues you are going through and, personally, I think the only "magic answer" to your dilema is to keep connected here - with this OCF fammily - who will keep you grounded, hold your hand when you are worried (and worry with you), reassure you and rejoice in great test results.
How to live long term after cancer.......... mmmmmmm...... thinking (yes, David a rareity). This is such a cliche I hate to say it, but I do think you live "better" after cancer. You live more appreciatively, more aware, more awake. You don't waste the Mondays that everyone hates and you aren't looking for the week to zoom by so that its Friday. You truly do appreciate each day, and maybe alot of the smaller things that others overlook in their hurry to make time go by faster.
I'm rambling, but will just say welcome and glad you posed the question!
Donna