QUICK TRADE on Bitcoin now? BTC to Steem, ETH, XRP or USDT? on Bittrex - what to buy for holding?

I have never made a trade till now. I’m in crypto worlde since middle of June 2017.

Also, i see Bitcoin went up a lot since yesterday.

I don’t have much on assets. A total of $50 in 3 coins: BTC, ETH and BCC, on Bittrex.

Can i play around and sell my BTC now being higher than ever and wait for it to go down and buy again?

What should i buy as a holder till then?

I looked at:
STEEM – is the most stable until now (in july-august) and last days on a bearish trend.
ETH – is on a resistance line since july 20th at about 0.08507014 btc and playing up and down below that resistance
XRP – is on a bearish trend since middle of july
USDT – can i buy that on bittrex and have them as assets (i see it in my wallet as tether)? And that it is supposed to remain at the same value USD/USDT i suppose?

I just watched videos till now regarding trading, but was afraid to trade in that uncertain moment with the fork.
Now i think i must start to play around to learn how to do that.

What ideas and advices do you have?

Also, please share it if you like it, vote and resteem for new ideas.

Thank you.

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