Hi Codeforces community, I have created a tool for helping out CF community — CPDojo.
This tool can be used for monitoring ourselves and also to filter problems.
Some of the features added as of now are:
Problems filtering based on number of solves, problems tags and ratings. Like if you need problems which are solved by atleast X people and utmost Y people, then you can filter problems that way.
You can also view how much problems you have solved between 2 time periods based on the problem ratings. This will help us to track exactly how many problems we solved during past 3 months and then we can make decisions based on that analytics.
You can also view how many problems of particular type you have solved, which will eventually contribute to your progress tracking.
Sample screenshot: 
I am planning to add additional functionalities too in future... If you have some interesting suggestions please do let me know :). Also let me know if you have any improvements that can add more value to the tool. Thank you !
Note : I am working on mobile UI currently. It is under development, so it is not recommended to view it in mobile. Thank you for your patience.
--------------------------------- New minor updates -------------------------------------------
Added Direction texts to show some functionalities on the platform
------------------------------------------------- New update -----------------------------------------------------------------
-- Added provision to exclude problem types (get all problems having type as graph but it should not contain tree problems). 
-- Added a table to see all attempted problems which are not solved.
-- At the chart displaying number of problems solved in time range (based on ratings), at it's legend user will be able to see the total number of problems solved within a given time range.
------------------------------------------------- New update -----------------------------------------------------------------
-- Added Problem Recommendation system. This allows a user to particularly train for reaching their next rating group milestone. (i.e from Specialist to Expert)
-- Added complete change in CPDojo UI.
