My private key starts with 6. Idk if that helps

I'll give another wallet a try if that's my only option I guess

I only have the option of sweeping all the funds. It won't let me choose the amount. If there is a fee I know I have enough to cover the transaction cost.

I am getting a cannot build transaction error when I try sweeping a paper wallet with copay. Any idea what could be happening?

I was considering a paper wallet until I saw a YouTube video on how they are "randomly" generated and my gut instinct is that they are insecure in the way its generated even offline. My concern is that the randomly generated wallets like bitaddress.org have pre-generated wallets that the site makers have access to and all the random typing and waving the cursor around is all a ploy to make you think it's randomly generated. I might be ultra paranoid, but what would be the most secure cold wallet? Could ledger nano s or trezor have similar security risks even.?

Are there any BTC debit card options with NFC or QR code capabilities that allow you to transfer directly from a mobile wallet to debit card? Are debit cards able to have a wallet in them even? Or do BTC debit cards convert BTC to USD?