I'm also another example of a natural left hander playing right-handed guitar.
In my opinion, guitar playing is more about left-right hands coordination, so either way, both your hands gotta work. However there are some advantages to using ur right hand as the strumming/picking hand.
1) Learning curve
If u get somebody to teach you or watch videos to learn, thn its hard to see a right handed player play and thn figuring out ur fingering on ur lefthanded guitar. this is esp. so if u are new to music in general thn you still have to learn t read the beats as well.
However, in my experience, by using the right hand, u give urself and whoever is teaching you an easier way.
2) Guitar availability
Let's say you wanna upgrade your guitar after you get the hang of playing and is determined to progress your interest. It's easier to find right-handed guitars thn left handed ones.
So this is just my penny's worth and i hope you'll get a new guitar soon! xD