This is a good article about the best way to track your crypto investments.
I have set up tracking with https://altpocket.io, the article’s number one recommendation. It’s very easy to set up and use and has an api link to major exchanges including bittrex, which means your trade data from bittrex is automatically sent to altpocket. Setting up the link is easy, in bittrex you have to ensure you have two-factor authentication and then it’s a quick copy and paste of public and private keys to altpocket.
Altpocket has a clear dashboard, listing all coins and profits made so far. The only drawback is it is not currently available on mobile devices. The developers have stated this is coming but their preference is to develop the website first. For mobile tracking, blockfolio has been recommended.