Can I fix myself I’m not a mechanic

As answered when you asked the first time: Hello, an engine misfire is going to be caused by an ignition spark problem, an engine fuel delivery problem or a base engine issue. Since it sounds like it's intermittent, I would rule out base engine because your problem will always exist and never be intermittent if it was that. I would probably start by checking primary and secondary ignition items, such as spark plugs and coils. Hands-on testing is needed to find out what's going on. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops