People reply to your journal, you just have one post that doesn't have any replies, that's all, I have had 4-5 posts in a ROW when no one has replied, just remember when one of your posts doesn't get commented on it doesn't mean people have forgotten about you, if you keep posting people will keep replying
So the concept here is responsibility and pleasure over productivity. Responsibility is good and bad, it's a double edge sword, it allows you to have more things, to be more trusted and to have a more productive life, but also makes you more vulnerable, means you are responsible if things go wrong and etc, etc. You are going to have responsibility in your life, and there's always the chance that things go wrong, and tbh, in some cases they probably will, but those things won't be that bad, you'll live through them and things will be fine. So if you want some advice, there's plenty of advice there for the taking, but advice and guidance doesn't exempt you from responsibility to take charge, advice will help you but YOU still need to do things, life's unfortunately not made to be easy, it's made so you can help people and be a productive part of society. People will help you so you can help other people, that's what's expected, otherwise a society won't function well.
So here's some actual advice between taking responsibility, but again this is methods on how YOU can help yourself, it's not me doing it for you.
1. Set up a goal: This is an old one but it helps when you get motivated. You need to have a goal, something to strive towards, what do you want to be? Do you want to go to university and get a degree? Do you want to work? Do you want to be more socially adept? Do you want to be more independent? You need to set yourself some goals, if you don't have goals you can't really have motivation cause what would you be doing anything for? Set up a goal, think long and hard about what YOU want to do, and set that as your goal, your goal can change from time to time but it's important to always have something to strive for.
2. Plan: Now that you have a goal, work your way to a small goal and plan how you're going to get there. Yes, this will mean getting responsibility, but with proper planning you won't have any problems. A plan should detail with FLEXIBLE (not strict) guidelines on how you achieve your goal, a sequence of steps and how you plan to move from one step to another. Your plan should be flexible, IE: if you're unable to do one step, you might have other opportunities to complete your plan (lets say you wanted to do a degree and you planned to go into a university, but they didn't take you, a strict plan would fall apart there, but a flexible plan and flexible thinking would mean you'd come up with ways to get into that university like starting at a community college or going to a different university and doing a transfer). A plan should also account for if something goes wrong, you should have back up plans all around, never rely on one single plan cause predicting the future is hard and it's very unlikely things will work perfectly. So it's important to have back up plans in case things go awry.
3. Comfort: It's important to step outside of your comfort zone a little bit. Lets say you wanted to volunteer, you would actually need to volunteer and take some responsibility for yourself to achieve that goal. You need to go out of your comfort zone and put yourself in a situation you may not necessarily like being in, but this will help you, if done correctly you will expand your experiences and the things that scared you most won't scare you anymore. Don't go over board of course, if you're scared of roller coasters I wouldn't go on the fastest, scariest one right away, I'd start small and gradually move up. A good way to step out of your comfort zone is if your friends, co-workers or someone you know suggests something, just say YES, even if you don't want to, you'll find you'll do a lot of cool things you'd never thought you'd do if you do that.
These are three major tips on getting yourself to take more responsibility, again, these tips won't MAGICALLY allow you to become super productive and love responsibility and know what to do. But they're guidelines, as you say a "nudge" you need to actually DO a lot of the work though.