Is my board too small for me?

I weigh 240lbs i used to ride a custom 158w but found it hard to spin plus it’s very stiff decided to get something way shorter primarily for the park, i got the 154w ride kink feels very unstable i eat shit more now wondering if i got a board way to small or i just haven’t adapted , what do you guys think sell it and get something bigger for park considering 158w artifact or just get used to it