Congratulations on your first bought bitcoin. I hope you can hold your bitcoin for a while until the price can return to the high price because this dip seems to stay for some time. You don't need to worry if the price still fluctuates because that is what will happen to bitcoin, but you can buy more bitcoin if you still have more money, so your average buy price will reduce than before. After this, if the price can increase again, you need to make a plan when you sell your bitcoin. Otherwise, you will still hold for a long time even if the price can back to $50k-$60k.