First job Tax help: 14L salary

It’s my first job pls help me plan my money taxes 23000 rent per month Basic allocation: 35% I’m getting 1.02L per month But my friend with new regime is getting 1.10L or 1.15L I’m paying 14000 tax per month in old regime Pls help me choose which regime is good for me old or new No PF opted Can do 1.5 L ELSS Which regime should I opt? And should the basic allocation be 50% or 35%? It should be maximum or minimum? Pls help