New relationship anxiety 😦

I recently started dating again after a full year of being 100% single. I took a break on purpose because I needed time to recover from some traumatic life events, including my verbally abusive ex leaving me for another woman (good riddance!). Anyway, new guy is AMAZING...by far the most compatible man I've ever met. BUT, I'm terrified it'll end in flames...so much so, I almost want to walk away now to prevent anymore heartache. Any advice?