Your welcome, I am in a similar situation but I only started three months ago, and I haven't done consistent advertising yet, I have time and knowledge restriction, but I believe in NOTHING IS IMPOSSIBLE. if you read the successful dropshippers thread you can see they work really hard yet constructive, I have so far done three shoutouts in instagram spent around $70(one is for a whole month with a 70k following influencer) and around $50 in facebook targeted ads, but my facebook posts are not great, I did not have revenue yet, but I am getting myself educated in terms of digital marketing and social media marketing.
If you need any sources I found lots of free courses and information I can share with you.
At the moment I am doing a free course provided by Google about SEO
Is your store a niche store? I picked women's accessories because I could not come up with anything else and I think this niche has high competition, but I am sure I can make it happen and my plan is once I generate an ongoing revenue from this even if it is not much, I will pick a better niche and move on to the second one.
But do not give up, sometimes we do not succeed merely because we are doing something wrong along the way, once that thing is identified and corrected everything will be fine.
I read this in a book called Eat The Frog: Look at successful people and see what they are doing, if you do exactly the same as them you will be successful too!