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how do I say I'm just rebuilding myself

how do I say I'm just rebuilding myself
When others ask no what's really up,can't say u know rebuilding myself back up to a new version of myself or I'm fine,will not say great or just living it up, flat out lie it would be ,so I just stay strong burrying it down the hurt ,pain and disappointments that occurred on the way,still knowing faith,love and strength remains while living and learning every day.