Because both actions are being done to the speaker.
If you remove me, the meaning changes or becomes less specific:
That could be for someone else, or just describe the action more generally.
Yes. That is also correct.
With querer + infinitive, the pronoun can usually go:
So both are possible:
In your full sentence, the original version is very natural because each pronoun stays with its infinitive:
Because querer is followed directly by an infinitive in Spanish.
There is no extra word like English to in this structure.
So do not say quiero a hacerme here.
Both are possible, but they focus slightly differently.
The first one focuses more on the resulting hairstyle: a braid.
The second focuses more on the action done to the hair.
In Spain, hacerse una trenza sounds very natural.
Because in Spanish, descriptive adjectives often come after the noun.
That is the normal order. Putting sencilla before the noun would sound more marked, stylistic, or subjective.
So una trenza sencilla is the neutral, everyday phrasing.
Here sencilla means simple, plain, or not elaborate.
So una trenza sencilla suggests a braid that is:
It does not mean bad or boring. It just describes the style as uncomplicated.
Because la suggests a specific blue headband.
Using la usually means the speaker already has a particular one in mind, perhaps one they own or one already known in the conversation.
So this sentence sounds like: there is a specific blue headband I want to wear.
In everyday Spanish from Spain, diadema usually means headband or hairband worn on the head.
Depending on context, it can also mean diadem or something crown-like, but in normal daily speech in Spain, the most likely meaning here is headband.
So in this sentence, it is almost certainly a hair accessory.
Because color adjectives normally go after the noun in Spanish.
This is the standard word order. Putting the color before the noun is unusual in normal everyday speech.
Because Spanish often uses the present tense to talk about a current intention, desire, or plan.
This sounds natural because the wanting is happening now, even if the action happens later today.
If you wanted to sound more like a plan, you could also say:
But quiero is perfectly natural here.
Yes, but the meaning or emphasis may shift a little.
Starting with hoy is very natural because it sets the time frame immediately.