Hello, there are many things you can do after you 12th in PCM.
Below are some of the things you can do after your 12th class.

1) You can join Engineering by writing entrance exams.

2) Prepare for government exams.

3) Learn software courses if you have interest in IT industry.

4) You can study B.Sc, B.Com, etc.

5) You can study B.B.A or B.B.M if you are interested in Business sector.

6) You can do certified courses and do job.

7) If you have a idea then you can start a business or start-up.

8) You can also teach tutions as part-time or full time.

All The Best!!