You are a pessimistic person. It's a good idea to HODL but that doesn't mean don't invest. Not all people end up with bad investments and you can't advice all to not invest. Some people do make profit. In my opinion it is not a good move to just let you bitcoin sit idle.One should always have the mindset of earning more and more even if they own 60
BTC 
I am not saying to fall for scams out there but use your brain and do some business and start something new, don't let it sit idle but do something. That was the whole purpose of this thread to get some ideas of investing in 2019 other than usual HODL mentality.
Nope. Realistic and entirely empirical.
Your thread is about how to increase your BTC. Myself and a worryingly low proportion of others have pointed out that most methods are a superb way of decreasing it. The evidence is bellowing in one's face wherever you look.
If I'd attempted the same thing when I got rolling in 2013 I am extremely confident I'd have an awful lot less or nothing by now.
I've also said by all means risk a modest proportion of it. Go into it with no expectations and no panic and you might get a nice bonus or a salutory lesson. If the risk is managed correctly then it don't matter.
You're clearly going to do it anyway so I'll keep me gob shut from now on.