You should use lichess.org instead. You would have unlimited tactics per day which come from real games played on the website, endless number of studies made by other players on opening theories, free analysis of your games, and all these statistics about your progress and more! Like "do I win more often or not when Queens are traded?". Good luck!
I’m a huge fan of lichess for playing and analysis but I think for tactics, it’s the one place it’s lacking, it’s always too easy for me for some reason and I go to chesstempo instead. Does anyone else experience this? By the way, when I say easy it’s for me that I’m an average player.
Over the years I've been bitten for weeks at a time by a bug that fetches a batch of puzzles at a time on mobile, and then loops through those 50 puzzles repeatedly instead of fetching more.
Even when not bugged, this behavior of 'fetch N puzzles at once' heavily encourages rating ping pong, you get a batch of easy puzzles, get them all right so your rating jumps more than it should, then a batch of hard puzzles and get crushed. I found I only ever progressed on lichess after grinding meaningful improvement slowly on chess.com, then coming back to lichess to 'catch up my rating'.
I also quite like Chess.com's Puzzle Rush.