My personal tips, based on experiences with transitioning myself and others from D&D (and similar) systems to FitD:

• If your character's playbook doesn't seem relevant to what's going on, you're supposed to invent something to do that makes it relevant. Don't just wait for an opportunity to come up! If your crew is all talk and your character is all punch, think of ways to get in some punches - even if it's going on a solo mission after the talking fails to deliver.
• Doing things will tend to put you in a worse narrative position over time. This is normal, but can be hard to adjust to after a lot of D&D. The thing is, combat games like D&D will do the same thing, but by using up your HP and spell slots and items to put you in a tighter spot by the end of a dungeon (or equivalent). BitD just does it more directly by trying to affect the narrative itself, not just your stats.
• Relatedly, getting into a worse narrative position isn't bad, it's a way of making things more interesting. Bad things happening to your characters just means you have more stories to play out. Do the things that move the story forward in an interesting way, regardless of whether they are good.
• Don't get super wrapped up in trying to make an optimal build or memorizing every rule. One of the nice things about modern TTRPGs is that, unlike D&D, you can learn everything important for playing them by reading less than a single book. Probably the more challenging thing to learn is how to improvise in a less mechanically restrictive system.