Tired of Crying Everyday

I’m so tired of crying everyday. It’s been like this since summer. Now, I’ve struggled with depression for most of my life, so I’m no stranger to these feelings and I’m not a stranger to being sad a lot. But this summer my depression started noticeable escalating when my brother unexpectedly died. It obviously hurt a lot, I was heartbroken over this, still am heartbroken about it. There was a brief point where it started to calm down, and I was crying less and less. But then, a couple weeks ago, I had an unexpected, ugly falling out with my best friend. This completely shattered my heart. I’m so devastated by this, because I actually saw myself being best friends with this person for years, possibly even the rest of my life. Now, my mental health has deteriorated again. I think it’s even worse than it was this summer when my brother died. I lost two people very important to me this year, one who died and one who left me. I feel like such a wreck. I usually burst into tears at least once a day. I feel so tired all the time. I feel lifeless. I’ve even started to feel like I’m reverting back to my old ways, when I was a mentally unstable teen/young adult and I was very unhinged. I’m scared. But I’m trying so hard to be strong.