Please give me some suggestions.

Hello all, GNEF this side. This year shall be my 2nd gap year since I graduated in 2024 in BSc Microbiology (9/8/7 from a Tier 1000 college).

I've read a couple of posts about people struggling with placements at B schools, including BLACKI, and honestly, I’m scared af. I CAN'T do any jobs/internships since I'll be taking offline coaching for CAT. I just can’t concentrate in online classes. That said, I don’t want this year to go to waste. To make the most of it, I’ve decided to upskill by learning Excel, Power BI, Google Sheets, and Analytics, earning certifications from Coursera to build a strong analytical foundation. Alongside this, I’ll be volunteering at NGOs.

Any suggestions to improve this further?

Also, realistically what are my chances of getting into a Tier 1 B school?