I need a full-fledged tactical training to improve my rating :(

Greetings to all the members of the Chess.com community. I firmly believe that the topic under discussion in this post is a widespread dilemma for most chess players who aspire to climb the rating ladder. To introduce myself, I am a 1400-rated player in the Rapid format on Chess.com and around 800 in both Bullet and Blitz.

While analyzing my games, I could clearly tell that I let most of my games slip away mainly by allowing simple tactical blunders or by failing to capitalize on the tactical errors made by my opponents. It is undoubtedly a frustrating experience for any chess amateur (including me) to observe this trend sooner or later. When after learning a few mainline variations in commonly played openings and gambits, and after reading the book "How to Reassess Your Chess, 4th Edition" to develop a deeper understanding of chess strategy, you go on to continuously blunder simple forks and pins, game after game.

Therefore, I would really like for the members who are reading this post here and who have most likely faced a similar issue in their chess career to suggest me a proper and rigorous chess curriculum,  which may a sequence of books on tactics to be read by me, few online studies, or something along those lines. Additionally, I would prefer if the suggestions were mostly books or online courses which are reasonably affordable instead of chess coaches.

I aim to attain a 2000 rating in the Rapid format and around 1200 in Blitz and Bullet by the end of this year. I believe that your suggestions shall be the most valuable step in realizing this aim. Thank you in advance guys.

I did about 100 hours of chess.com tactics, I say it helped me with tactics and being aware of tactics my opponents may have.

Write down your blunders and categorize them.