How long for Lamictal to kick-in

I’m titrating slowly and first week at 200mg.

Still couldn’t feel anything except loss of libido.

My psych added Wellbutrin in the morning and I’m 2 weeks on 150mg/day.

I’ve added 50mg of Seroquel in the evening because I’m having a hard time sleeping…

Should I increase Lamictal to 300mg ? Honestly it is very tough to wait until the next psych appointment…