use your 0.3 to buy xrp, dgb, and etc and save it for 3 months, don't sell it if its not reach high price. you can save the rest of your bitcoin in your wallet and i am sure that in 3 months later, you can make big profit for your bitcoin itself and if the altcoin that i suggested is going to increase, you can make another profit for you. but its only an advice from me and the other members and you need to do some research before you want to buy altcoin and make an order buy with careful.