Nap tips

So we finally started sleeping better at night (only up 1 to 2 times) but naps have been a struggle! He naps forever (1 to 1.5 hours) if we hold him but once I put him down he wakes up or only naps for 20 mins. I've been trying to have him nap on his own for two months now!!! And nothing is doing it lol for example today I tried everything to get him to nap and it took over an hour and he finally went down then he woke up in 20 mins and now I'm holding him and he is napping 🤦🏼‍♀️🤪

The reason I care is because he is going to daycare tomorrow for the first time! I really dont know if they will be able to hold him for naps or if he will be too excited w the change to even nap!! I have been trying this for 2 months in prep for daycare and now its here. I try putting him down at nap time, rocking then putting down, going in and pick up put down 45 times. I've tried shush pat his chest and not picking him up... what else lololol