Hey peeps, I am new to nostr, and I am a bit confused, so I have a few questions

How do I connect a wallet to my nostr account? I managed, I think, to add a lightning address, michaeljburgess@vipstats.com, but now I need to add a wallet for instant zaps (not albey it invite only and not free)

Is there a way to cross-post from sites X, Instagram, YouTube and tiktok so that when I post there, it auto posts to nostr