At start, I thought having this title was nothing to care about, and it didn't come with any responsibilities
<instead of adding thats into this sentence, is there a way you can change around the first part? or even combine the two? When I began, I did not realize that certain responsibilities came with this new title* sounds a tad more positive.
Week by week, I would come in, sing songs for the kids, and that would be the end. I didn't put my heart into my work, and my brother took notice of that.
Interesting. you use a tense that seems rather unfitting in an essay, but as a reminiscent aspect of it, using would and took.. make it more story-like.
However, some things
I'm not doing my job properly
make the tense a bit more difficult to follow. try to make everything consistent in tense or it gets distracting.
In an instance, my brother
what do you mean by the "in an instance"?
After a couple months of reflection, I returned to the church, and began leading worship again.
good for you~ here, there is a slight parallel error because you use "returned to the church" but you also use "began leading" - began to lead*
My church leader confronted me, and told me that I have touched many hearts, and have been strong impact to the lives of kids and youths who lived in the community.
confronted sounds somewhat negative, but if it does fit. maybe you can combine that part to say: Surprisingly, my church leader...* to lead for a better transition and add some positive-ness into it :P
Good luck~