Realy realy bad idea putting your life savings into 1 plan, mining is hard and expensive unless you can get free or nearly free electricity and broadband. Personally I would not put more than 20% of my savings into anything-just imagine how it will feel if you loose all you have worked so hard for for so long, By all means reinvest your profits back into crypto and with luck you will see a big capital gain.
after learning many things about crypto and blockchain I dare to give my savings up to 30% for crypto. crypto is a modern financial technology and has many advantages over its lack, when people realize that all crypto have fantastic prices and we will regret not investing
I will suggest you not to invest all your money in one coin. Split your investment in different coins. By this way you will mentally relax because if the price of one currency falls other will recover your deficit. Putting all your money means that you are leaving other good investment options. There are some good coins apart from bitcoin. You can also invest in them.