about me
Sean Harrison – Your Personal Trainer, Coach, and Motivator
My Story
2019
I was just starting university – studying sports & coching science. I was always the skinny guy with no confidence, no energy & no clue whhere to start. I didn’t believe i could ever change & felt like I was always running flat.
2020
Me & the mrs went to Budapest Thermal baths where for the first realised how bad my body-dysmorphia was. I hated my body so much i needed to down 3 beers just to get topless.
2020
I’d always dismissed it & just blame my fast metabolism, poor genetics & busy university lifestyle. But the truth is, I was stuck & this holiday was my wake up call.
2021
So i got myself a job in retail to afford some home-gym equipment. For 6 months I trained clueless… But committed every rep gave me confidence & I realised I was capable of more.
2021
My new found discipline helped me build up self belief & I gave university one last crack in hopes of graduating I just missed out a first class degree but I still graduated. The UK lockdown was then lifted & gyms reopened – so I thought I’d give it a go…
2022
By the end of 2022 I’d gone up 2 t-shirt sizes & decided to get qualified as a PT but business was pretty slow so I had to continue the retail job alongside this was when life started to get busy.
2023
I started to burnout & pretty quickly lost my energy. Before I knew it, my drive withered & lost size but also my confidence. And I knew I needed a better way torwards other than just ‘pushing harder’.
2024
So in 2024 I created a system that works for busy guys – not against them. One that balances work, social life & the gym without burnout. It took me a while & I had to trial a lot of things… But the THRIVE protocol was born.
2025
Now I’m the most confident, fulfilled & proud version of myself. And my mission is simple: to help as many other busy guys build muscle, drop the stubborn belly fat & take control – just like I did.
want to follow the same path?
Book a consultation to reserve your spot and let’s get to work on YOUR transformation!
professional
background
I’m a qualified Level 3 Personal Trainer with a degree in Sports & Exercise Coaching Science and over two years of experience coaching busy men online. I help clients drop stubborn belly fat, build lean muscle, and feel confident in and out of their clothes — without sacrificing work, family, or their social life. My coaching combines tailored training and nutrition plans with weekly check-ins, mindset support, and real progress tracking. I cut through the guesswork to give you structure, accountability, and lasting results — even with a hectic schedule.
nasm certified
my certifications
I hold NASM Certified Personal Trainer (CPT). I’m always learning and staying up-to-date with the latest fitness trends, ensuring that my clients get the most effective and science-backed methods.
my certifications
I hold NASM Certified Personal Trainer (CPT). I’m always learning and staying up-to-date with the latest fitness trends, ensuring that my clients get the most effective and science-backed methods.
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