Good post Hive account@jhenrip! Some thoughts on each of your points:

1: BitTrex is probably the best centralised exchange. But you might want to look into a decentralised one such as bitshares or ether delta.

• Bit Shares: https://bitshares.org/wallet/
• EtherDelta: https://etherdelta.github.io/

2: Only buy in the dips, but even this can be bad advice if the dip continues. Generally buy when it is red, sell when it is green.

Check the charts on your exchange, and also here: http://coinmarketcap.com

3: Yes the fees can kill you! That's why it's best not to be too hasty with moving your coins around.

Also look for which coin is the lowest transaction fee currently before cashing it out.

For example: When bitcoin fees were higher not too long ago, it was best to convert to ETH before cashing out because the fees were lower.

I think btc fees are now lower unless I'm mistaken.

Hopefully that's been of use to you. :-)

Best of luck on your crypto journey!