It will be a few days until the dose in your body is actually lowered to that level so you may still have the side effects you're experiencing until then but everyone's body is different. Hopefully with the lower dose your body can tolerate it better and then once any remaining (lessened hopefully) side effects you have have subsided and you've been stabilised on that dose for a while (often a week or 2) then they may try increasing it again and see if, because your body is used to the med, it will give you as bad side effects but really it's up to the doctor and you to discuss that (as well as you potentially having blood tests to see it's level as that shows how useful or otherwise (ie causing bad side effects and other problems the med is; the level in your blood doesn't necessarily link with how you feel; in most cases it does but as with all meds they react differently with some people than others) the dose you're on is likely to be. Though, you and the doctor should also think about how you felt without drugs or on any other meds you've been on as to what is the best thing to do from now.
If you're having suicidal thoughts then discussing this with your doctor is also important as that shows something needs to be done as you're obviously very depressed. It may also help if you talk to any other mental health professional that you have if you have any others and see if they can help, though due to the time of yr, services are reduced. You could also contact the supporters via live help or also via
support@recoveryourlife.com and see if just talking to them also helps though it has to be remembered that those, like the FA Team are not a replacement for professional help.