Road trip with 2mo old

Friday night we are taking off to Texas, very very very south Texas from Charlotte, North Carolina and we will be taking my 2 month old. The drive is 20hrs long and i want to see if anybody else has done a similar trip with a baby? Does anybody have any tips or advice to make things run smooth? If that’s even feasible. This trip is very important for me since we haven’t seen our families for a year now and they will be meeting my LO for the first time. TIA!