Here's a screenshot of the application I used:
https://ibb.co/f3fqpmI don't think I will ever invest in Bitcoin again. It's way too risky and the fact that operations can't be undone makes is highly unappealing.
One mistake in the sending or receiving address and you're screwed I mean that's just messed up isn't it?
Oh well, I learned my lesson the hard way!
1 BTC is quite a lot. This is a very painful and expensive lesson. Don't give up on crypto yet. It does require a little bit of care to manage your coins carefully. If you had just let your coins lie in your electrum wallet, until you wanted to cash out, you would have been okay.