Hi @mariam1, welcome to the forums, thankyou for having the courage to reach out and share your story with us.
I take my hat off to you for still having the strength to fight your depression for over 13 years! that alone is something you should be proud of, and yet you've been through so much more on top of that. I can definitely relate to the question of whether it gets better. Honestly if we didn't have hope of things improving what would be the point of even trying, even getting up and still fighting for those better times?. I have been doing a lot of meditating and listening to Buddhist teachings, so I apologise if I get a little too philosophical.
We can't stop bad things from happening, but we can control how we see them and how we react. There is something we can learn from every experience, something to be thankful for, if we look for it.
In regards to being alone, practise self love, self compassion, give yourself the love and care that you long for another to give to you (lmao I'm sitting here reading what I'm writing, thinking geez I really should listen to the advice I'm giving). Create a life you love, become something you love. Don't regret your past, it has made you the beautiful person you are today. As you create your life, doing things you like, you will meet like minded people whom will enhance your life, who you can share your joy with and they can share theirs with you. It doesn't mean that there won't be more hard times, but those hard times will give you the lessons to survive and avoid those hard times again. Don't forget you've made it through every experience that you thought you wouldn't make it through so far.
Don't torture yourself with past events as they can't be changed, don't get lost in dreams of the future and where you want to be, sure have an idea of what you would like, but all we have is the present moment, everything is in the now, focus on the now and the next immediate step to get yourself closer to where you want to be. Again the past has happened and can't be changed, the future is uncertain, we are all in the present, in the now, what we do now, affects where we will be tomorrow. So as long as you're trying your best, doing your best, then the effects will be positive. Don't forget you best isn't constant, it varies from day to day, some days you will feel like you can conquer the world and other days your best will be getting out of bed and basic self care.
Don't be afraid to reach out, there's usually someone here.