It's an easy entry and exit...as simple as walking into the water. There's no surf, and the concrete bridge bases shield you from any current.
Be sure to look down as you enter and watch where you walk...I've found octos and gurnards in thigh deep water. Make sure you have or are with someone with a dive flag. You're new here and there's been some past drama at BHB that resulted in some divers being ticketed for no dive flag (a misdemeanor criminal violation in Florida). Likewise pay attention to boat noises, as BHB sometimes gets lots of boat traffic.
Lastly...at BHB go slow, take your time, and relax and have fun...it's a beautiful dive !!!
I'm not surprised you had a tough exit today...3 - 4' ft surf is tough even for some of our local experienced shoredivers. A good rule of thumb in Lauderdale shorediving is if few or none are signing up the Gold Coast dives, it means the locals know something... and no shame in getting help on egress. I've impersonated a turtle several times coming out of the surf on my hands and knees. I found sand in amazing places in my gear afterwards (and elsewhere), so thorough rinsing after an exit like that is important.
Swellinfo.com is predicting flatter conditions from tomorrow afternoon through Sunday evening. If you want to tackle LBTS or Seatech, those are probably good times to attempt it, though viz may still be iffy tomorrow.