Yes thank you for this piece of advice, I already tried and I was a bit lost with those channel things and saw many people say they lost funds experimenting with it and I'm not experienced enough to play with this and the very small amount of BTC I have. Also I understand that if you don't have much, people won't use your "routes" and you will not make money out of it.
I think as said before your post, that promoting bitcoin and using it are the best things I can do now
there are many things that can be done,
firstly learn about bitcoin and especially learn about anything bitcoin related happening in your region.
(local services to promote/get involved in, local meet-ups/conventions, your local government representatives stance on crypto)
there are alot of people that like to do face to face exchanging in a safe space. and socially gather to talk about it (much as the anime people like to go to comic-con and cosplay conventions)
so learn about bitcoin and if there is not much events/stuff happening in your region, you could try to become the event organiser to start meet-ups in your area and if progressively more popular, you can upgrade from meeting up at a cafe with like minded people to start a formal meeting place and progress to a conference/convention space.
i have seen people try turning their local area into a tourist area centred around crypto, such as bars/cafe's that accept crypto as payment or even selling locally or online crypto themed novelty items
if you are business minded you can look into opportunities of starting crypto related businesses
also if you are into politics, you can keep an eye on any involvement of your local governors involvement of any bitcoin law/regulation and petition them if what they propose does not meet the bitcoin community standards
if you are more of a social influencer you could look into the real facts of bitcoin and discern the fact from fiction of the social media representations of crypto
spreading awareness. correcting myths, starting businesses all help to strengthen bitcoin in the real world
i understand you are not a dev, so peer review, scrutiny of the dev-politics of protocol changes are not your path. however awareness of protocol changes (which usually get translated by others from code jargon to 'normal speak') can help yourself and others to know if bitcoin is going in the right direction where you can also be involved in prompting the core devs to stick with bitcoins principles, rather than changing into a wallstreet puppet
..without knowing what skills/experience you do have in the real world of employment, its a little harder for us to guess the best path you can help support bitcoin, but i hope i added some ideas beyond the narrow 'just run a node' rhetoric