The official Valorant App offers an extensive array of data that you can use to create an in-depth analysis of your own performance. With it you can see your match history, statistics, and much more, including:

Win Rate
KDA
Personal Statistics
All-time and Current Match Scores

Spike Stats for Valorant can also track and display a player's progress in a tournament or other activities, and can be used to track the performance of an agent or weapon. It also includes an extensive list of metrics for each of the active weapons, and allows you to sort by them and view their recent performance.