I third the suggestion to feed while walking around. It's instinctual that babies relax more when they are carried (otherwise, we'd have dropped a lot more babies in the history of the human race), so that definitely might help Jackson relax enough to latch on.
Second thing: how often are you offering a feed? Have to tried offering a little more often, even if he doesn't seem hungry to you? It might be that he's pretty hungry by the time you're feeding him and he's more likely to escalate quickly into the "upset and having trouble latching" stage. Skin-to-skin is calming as well and helps them reconnect with their natural latching instinct.
You're right at the cusp of 2 things: 1) supply regulation, where a lot of women's supply starts to regulate-- meaning you won't get engorged nearly as often (if at all) as you did before. It means your supply is closer to where it should be for your baby's needs, rather than being more than you need. And 2) the first several months is just solid growth spurt, so they'll be hungry often and will stay on the breast suckling a lot. It certainly doesn't mean you have too little milk. But giving formula, at all, in any fashion, WILL cause you to have less and less milk. So I'd really encourage you to drop the formula and bottles and just nurse, nurse, nurse, nurse if breastfeeding is something you want to continue doing. It's tough and scary, but the hard parts will pass and you'll be so glad you dropped the formula sooner rather than later because it's a really slippery slope to full-on formula feeding.
Keep track of diaper output. 4-6 wet diapers/day is normal for a full-term baby at 2 weeks, but consult with your IBCLC and double check a normal amount of wet diapers for your baby's developmental age, because it might even be less. Diaper output is the most reliable way of knowing if baby is getting enough.
You can do it, mama!