When did you start feeling better?

I was on lexapro for one year and then Zoloft for a year… I loved the way the ssri’s made me feel, but the weight gain was more than I could handle. It made me hungry every seconds of the day and it was effecting my heath. So after finally finding a doctor that would listen to me, she switched me to Effexor I am currently on day 5 of 37.5mg. I have had increased anxiety all week, and don’t feel like I’m in control of my feelings / emotions right now - to the point I feel like I could cry at random points of the day. I plan to stay at this dose, so my question would be when did you start feeling better after you started taking Effexor? Do I have another 3 weeks of feeling like this? Any words of encouragement would be helpful right now 😢