You won't "be keeping this up your whole life" because you will begin to feel differently about your life. It doesn't happen overnight but you do have to keep that image in your mind of how you want your life to be. then it is just working to get there.
No one thinks you need to be "on" all the time. In fact I am sure that would notice if things didn't get to you. Just be yourself. Let the facade go.
hugs, kat
Me-53(and learning!) S24, S21, D18, D17 Just keep swimming, Just keep swimming. Dory