Looking for advice (18 year old)

Im currently 8 ish months into my part-time job and I’ve managed to save up 10k.

I have two main sources of income no 1. Being my job (€250 - €780 is paid every two weeks) and no 2. A weekly payment of €252. My weekly payment will stop in the next couple of months.

I would like to put the money saved so far to work but I’m not too sure how.

I already know about investments like the S&P 500 and general trading. However im looking for something more reliable that offers steady income week in week out to replace my weekly payment.

I’d be grateful if someone can point me in the right direction.