Deductions & credits

Ok first the good news ... since ALL of the increased CTC is refundable NONE of it will be used to reduce the EV credit so you don't need to worry about that on the 2021 return.   Next, to increase your AGI you can earn more, sell stock at a gain(short term preferred), convert an IRA or 401K to a ROTH  among other possibilities so look at the form 1040 for ideas.