No. Payments for school must be made in the same year* as the classes were taken, to qualify for a tax break.
Money you paid in 2020, for schooling in past years does not qualify.
*There is one exception, but it does not apply, in your case. Payments made in the current year (2020) for classes starting in the first term of the following year (2021) may be claimed on your 2020 return.