Depression is real!

I've been doing well on my mental journey, going to therapy, utilizing the tools. But when you have someone around you purposely trying to bring you down, trigger you it becomes hard to focus on these tools. They try to convince you that no one person can make you feel a certain way unless you allow it. But it's easier said then done. The feeling of loneliness, brokenness, sadness, worthlessness is real and it hurts. I'm trying to focus on me, being a better me but I feel myself going backwards, sinking, screaming for help. My next session isn't until next week, last week she felt like I made a breakthrough and this week I feel like I'm starting all over..... Everytime I take 2 steps forward I'm knocked 3 steps back..... I don't know where to go from here......