The very first Bitcoin address I ever used to deposit into it all the sudden is showing on electrum that there were transactions made to and from that address literally last month so I'm just perplexed
I still don't have a clear understanding of your problem with signing a message.
You deposited to freebitco before and now you want to sign a message from that to prove your ownership over the account. Am I getting you correctly? If so, where does that address belong to? Where did you deposit to freebitco from?
Did you import the address to electrum? If so, how did you do that? If you just imported the address, you created a watch-only wallet and you can't sign message from that.
So I originally used coinbase trading platform to deposit the transactions to free Bitcoin. That's why I can't sign the messages because I didn't know at the time what signing a message even was or that it was a thing. So because I used the exchange platform I screwed myself. Then I switched over to samurai wallet only to be let down yet again because the samurai wallet app is now seized by the feds. I have my recovery words for it and my password, even a pin number and a pay my username. But it's more complicated to recover than just a normal bip39 type of wallet. I believe it was a bip84🤔? And I don't know if it was legacy or segwit, segwit legacy etc.