Just to clear up the Multibit part: there was no seed back then. I can't remember which version but not HD. You simply installed it and that was it. It came with it's first address installed and you could add more if needed.
Thank you both for the information and suggestions, I really appreciate it. A newbie like me needs some help and it is great to have a platform like this with people who have a lot of experience. Unfortunately I have no friends or relatives who own bitcoin but they are getting mighty interested now.
For now it might be best to wait and see how BTC develops, it has been doing great for the last couple of days. And at some point it might be best to cash in completely, then try to get to the BCH and after that start a completely new BTC wallet with new address . On a brand new laptop thanks to bitcoin.
