​Tips on saving money & investments (22M, 150k (LKR) income)

Hey everyone,

I’m a 22M earning around 150k (LKR) right now, but I feel like I’m spending too much and not saving enough. I’d really appreciate some advice on how to manage my money better.

I’m also interested in investment or saving options, but preferably ones that don’t involve interest due to religious reasons. Any practical tips or personal experiences would be super helpful!

Thanks in advance