You need to work hard for it to get 1 BTC currently worth $4000 and that's a lot's of money to be earned and it takes time to earn it so be petient and keep working for it. If you work hard and smart for it then it will not hard to get it. It will be hard for few days when you start working then you will get used to it and it will be easy for you work and earn.
If you're in profit then you should sell it otherwise don't panic sell you'll regret it later. There is general rule of the market that buy low sell high if you follow it then you might get some profit. It doesn't matter you're newbie or expert start learning and you will understand the whole concept of the market.
I would say hold it don't panic sell because bitcoins are in the market for many years and will be If you have many bitcoins in your wallet then holding it is the best solution rather than selling it cheap and hard fork is very unlikely.