Brief Answer:
try switching to another safer antidepressant.

Detailed Answer:
Hello
Welcome to HCM.

I understand your concerns.

You are getting irritable as you have reduced the dose of your antidepressants.
With antidepressants, you are facing sexual side effects.

You have reduced the drug very slowly and appropriately. Still you face withdrawal symptoms.
Are you able to differentiate whether it is withdrawal effect or relapse of your illness?

However, in such cases, I would employ a strategy of restarting antidepressant drug which is safe with respect to sexual side-effect.
This will help you to curb the withdrawal effects.
You will also be able to regain your sexual desire.
Mirtazapine and bupropion (prescription drugs) are two such drugs which have negligible sexual side effects.

You can switch to them after discussing with your doctor.

Hope this helps.
Feel free to discuss further if you have more queries.

Thanks.

---

Brief Answer:
can start with new drug now.

Detailed Answer:
You are most welcome.

Change of partners can sometime lead to performance anxiety. This can impair sexual performance.

Since you are facing the constant stress due to your family reasons, I think not taking the drug will cause relapse of depression.

You can begin with new drug now. Start with the low dose. The continuation or stopping of drug will be decided by how you respond.
But as these are prescription drugs, you must consult your doctor before making any drug changes.

Hope this helps.

I wish you well.

Thanks.

---