Advice for a New Muslim Dealing with Tattoos from the Past

As-salamu alaykum everyone. I'm feeling a bit anxious and new to all this, so I hope it's okay to ask this. Alhamdulillah, after a lot of my own research and talks with some good Muslim friends, my heart has accepted the beautiful truth of Islam as the final and complete message from Allah. I really want to take my shahada and embrace this deen fully, but honestly, I've been holding back. I haven't told my friends or family about my decision yet. Part of it is shyness, and part of it is because I'm carrying some visible reminders of my past life that I'm not proud of. I have a tattoo on my arm from when I was younger, and its design relates to beliefs I no longer hold. I grew up in a different environment where such things were common, and in a moment of youthful impulsiveness, I got it done. Now, a few years later, I deeply regret it as I understand how it conflicts with the teachings of Islam. I was wondering if any of you have knowledge or could point me to some Islamic guidance about how to handle this situation? Any help would mean the world to me as I take these first steps. Jazakum Allahu khayran.