To your primary question, yes, you can. Honesty dictates that it is harder than “back in the day”. You may have to focus on those area’s of DJ-ing where not being a producer is less or no hinderance.
This means mobile DJ, doing corporate events, weddings and such. Those are actually gigs that will pay you relatively well for your work (more than club DJs in many cases) but won’t make you famous and you have to work at it commercially to get gigs.
On a secondary note, you mentioned missing dedication. Mike Monday (Google him) has a great program that will help you with stuff like that, should you want to get/stay into production after all.