Need help figuring out my CAT potential

Hey guys, I’ll be starting my fourth year of BTech next month. I am currently in a dilemma about whether to prepare for CAT or focus on placements. I have a few questions regarding CAT.

My profile is 9/8/8 (OBC-NCL, engineer, male). I think I am descent at both DILR and Quant to some extent but I want to assess how good I actually am in these areas. Could you guys suggest some free and reasonably realistic mocks that can help me understand how good/bad I am?

Also I’d really appreciate any suggestions or advice. Sorry if this question has been asked before but I genuinely want to hear from you all.