I have backed up and secured everything back home and stored it in a really really safe space that no one can find or access except me.
this is vague. some people may call using blockchain.info with 2FA as "really really safe" which is obviously wrong and some consider the cold storage on a pc that has never been connected to the internet and never will "really really safe" which is the right way to do it.
so if you did the offline computer thing then you are safe.
and if things are complicated for you then simply use a hardware wallet instead. they are safe enough and easier to use.