I want to ask everyone who got into bitcoin towards the end of 2017 and is currently at a loss, like myself

What will you do when the market goes up and you get your money back. Sell or just keep holding?
Let me tell you that if you are looking for short-term profit then cut-loss is not always a bad thing. You can sell in loss and buy other potential coins to restore your fund. But, if you are not really looking for profit, then you can let it and try to forget your lose because no matter how long it will take, Bitcoin price will be back and there will be a new all-time high. This is what always be my plan. Enjoy!