Welcome to Bike Forums.
Advice? Get out an ride and have fun.
I'm 67 (coming up on 68) and there are lots of others on here older than me. I see you've already found the 50+ forum. Lots of good advice there for "older" riders.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.