both are good exchanges i personally used both exchange and never faced any problem but i think bittrex is a bit faster and more popular if you compare it with  poloniex

yes ethereum price is depend on bitcoin price even all altcoins price follow bitcoin price if bitcoin down altcoins will be also down similar if bitcoin rise altcoins will be also rise.

in my opinion trading is better then mining if you have trading knowledge and experience,mining is only profitable if you have free electricity and large capital

iam trading with eos/btc and eth/btc pairs and this strategy working in current market satuation,even my earnings is bit low in these days but good then nothing

there is many good potential altcoins but ethereum neo litecoin ada and waves should consider in top 5 rank and these coins are good for long-term investment

ethereum is a good coin after btc price of eth is under 250$ in these days so i think its good opportunity to buy ethereum in such low price because price will be soon increase

I think now its good time and opportunity to buy bitcoin for long term investment because price is low in these days and if you hold your bitcoin you will be get great profit from its in future

yes current crypto market satuation is not good for day trading even experienced trader also facing loose in these days,i will be advise you buy and hold your coins for long term

yobit is a good exchange i never face any problem in it but i will be advice you be care while using any centralized exchange don't put heavy money in exchange and withdraw immediately after trade

neo is a good potential project with its advance technology which is technically better then ethereum,the price of neo is down so i think it's good time to buy its and hold its for long time

If you are newbie in crypto market then avoid trading because you will be face huge loss i will be recommend you to buy some good coins and hold its for long term you can make good profit from its in future

your investment strategy is looking good but i will be recommend you to add litecoin and ADA (cardano) these are also good potential altcoins

you can invest in ethereum for long term which is one of the best potential coin after btc, you can also invest in some good ICO projects which will give you good profit but before investment in ICO you need a little research about there project

Bitcoin and ethereum both are good coins and you can invest in both coins and also invest some other good coins like neo and litecoin,since cryptocurrency market is down i think its good time to invest for long term

I think trading is not profitable in current market situation it will be better to invest in good potential coins for long-term which will give be give you more profit in future

after cryptocurrency market deep dip it will be rise soon and even will be rise more to make new high records and i think its good time to buy good potential coins for long-term

for trading you will be need knowledge skills and experience you will be also need to control your emotions  there is many videos in YouTube where you can learn trading

 your wallet can be hack if you visit phishing website and enter your private key or share your private keys to someone, be careful and save your private keys in safest place then nobody can hack your wallet.

I think convert your bitcoin to ethereum is not good idea,if you have extra money then buy ethereum in dip which will give you good profit in future because ethereum is also good coin.

Its depend on your knowledge and experience if you have stock market experience then it will be easy and profitable business for you and same requirements apply for cryptocurrency