A lLittle bBit about mMy eExperience withLearning (American) English

(Disclaimer: Before you make any corrections, I write in American English) ¶
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Hello there, ¶
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I don't know how to introduce myself without giving too many details.

Since I was young, I've been constantly learning and practicing English, whether it's with my classmates or online users (This is the case)like people here.

These daily practices have led me to develop an admiration for the English language, finding it more simpler and resourceful than, in com Sparnison, Spanishh, for instance.

Even if this sounds like a cliché phrase, English allowed me to connect with people and make unexpected friendships within the AEnglosphereish-speaking world.

I don't usually hear Americans saying the Anglosphere. I usually hear something more like this for French. Does this apply to Spanish as well?

Since I was young, I've been constantly learning and practicing English, whether it's with my classmates or online users (This isIn theis case).

These daily practices have led me to develop an admiration for the English language, finding it more simpler and more resourceful than, in comparison, Spanish.

simple > simpler > simplest
simple > more simple > most simple

I’m not sure what you mean by “resourceful” here. Maybe “useful” is the word you wanted?
“Resourceful” is often used to describe people while “useful” is often for things. “Helpful” is another synonym that could work here.

Even if this sounds like a cliché phrase, English has allowed me to connect with people and make unexpected friendships within the Anglosphere.

“Allowed” is past tense — it’s completed.
“Has allowed” it started in the past and it’s ongoing.

HI hope you liked this short text, s. Since I am tired and, I don't want to write anymore.

Comma splice.
“Since” sets up a “since X, then Y” causal relationship.

You could also say:
I hope you liked this short text because I am tired and don't want to write anymore.