Hi BV, You're in a tough spot. Its easy to be anxious, out of control and at times hopeless. All normal feelings for your sitch. Many of us have been there. I have 2 kids under 4 and can relate.
I can tell you that my W pushed hard for mediation and D at first as well. She wanted it as quick as possible. She wanted space and asked me to leave the house. Well its been 5 months and no D, no mediation and we both live in the house in limbo. Just because your W feels a way in this current moment, doesnt mean it may not change day by day.
No matter the outcome you've work to do on yourself and thats what DB is for.
Keep working on you. Your mind is spinning which is normal. It'll take time to get back to your baseline then build on it. With the help of the people here, you wont be at it alone.
H37, W37 D4, S2 ILYBNILWY 9/19 BD 9/19 EA discovered 10/19 Currently in limbo, no D or S process initiated