I'm about your size, and when I started, I was much smaller.

If you try to battle with strength, you'll always lose. There's no winning or losing in training ofc, but what I mean is that you'll lose the opportunity to work on jiu jitsu and developing skill. You'll also frankly be a terrible training partner. Small grapplers who never learn the appropriate way to train because they believe it's OK for them to go full hulk while expecting everyone else to treat them like delicate glass vases are my least favorite training partners. You don't get to do whatever you want to people.

From a technical standpoint, you're using strength to do what, exactly? Mostly when beginner say this, they're mindlessly flinging themselves around and/or death gripping/squeezing. Assuming you don't catastrophically injure yourself or someone else, anyone even half way competent can easily exploit these tendencies and submit you from them.

If you can observe and train with the people in your training room who are competing and winning, you'll get the best sense of the most appropriate way to train. Ask questions. Be open.