It might not help right now, but I’ve found with my girls that they remember the fun you’ve had with them- no matter what it costs- more than the toys and money spent. Take your time making precious memories. Eventually your son will see through the gifts and bravado and realise who truly cares. A paddling pool in the garden will make them as happy as a water park. Pushing them on the swings is better for bonding than putting them on a ride at a theme park and leaving them to it. They want you. They don’t care about pennies spent.
Remember- you’re doing a fantastic job. Best of luck. You’ve got this.xxx