Buying more bitcoins is one of the options you can do for you to retrieve all your loses, but the question is
When will bitcoin will increase its price again?. We all know that volatility of the bitcoin is the hardest thing to manipulate in the market, next to the volume of people using it. It is very risky to hold more and more bitcoin when you have no idea when is the right time to convert it. You need to make an extreme prediction for you to execute your next action or strategies properly.
Like what you've said, if you're in this industry for 5 years then you are used to this kind of events in cryptocurrency. So that every time this thing happens, you can now properly handle this circumstances and you will not think of the possible negative incidents that will affect how you store all your bitcoin.
Many crypto investors especially newbies are scared of this huge market crash but if you have been in this industry for at least 5 years this would be of no surprise to you at all. This time is rather good and cheap to buy more bitcoins and hold till the future when the market starts to rise. This would generate huge profits for those who bought in at this level.
On the one hand, you are right: BTC and other cryptocurrencies are decreasing in value every day. And it looks like a good time to buy or exchange coins.
But on the other hand: priorities are important today and it's time to recall the Maslow Pyramid. Bread, peanut butter, and toilet paper are becoming the main investment during the quarantine.
In such a case there should be specially deferred money. Then it will be a rational investment.
In context, in situations like this, it is very hard to decide what are your priorities and what to do when you see that the Covid-19 around the world is spreading faster than a bullet. I'm pretty sure that this virus contributes or affected why the bitcoin decrease its price to $5000 USD. This only happens when the virus existed, but what can we do? We have other priorities like foods, medical kits, medicine and etc., that can we use to fight the virus. I suggest that be wise and intelligent in spending your money and prioritizing the things you would work on.