Yesterday was a good day, because I received "kudos" when I showed thean advance of my thesis to my Professor.

"The" is used for a specific thing. Since you're talking about a general thing, use "a". If you were Einstein talking about his thesis on the theory of relativity, for emphasis, you could say "the thesis by Einstein" but in general you'd say " a thesis" and this point stands for most things. "A" is used in the general sense, "the" is only used when the reader knows exactly which thing you are referring to. Hope that helps

That's because I consider I'm just doingwhat I'm doing to be just the basics and we could make a better analysis about the data.

I feel like you are missing a point in this sentence. It's hard for me to understand what you're trying to say.

In the morning I attended to my German lection, thature, which was very boring because we just studied grammar.

Yesterday was a good day, because I received "kudos" when I showed the advancedraft of my thesis to my Pprofessor.

Despite the praise, I wasn't very happy because I was expecting some corrections, or some guidance.

That's because I considerthink I'm just doing the basicsre minimum and we could make a better analysis aboutof the data.

"Bare minimum" is more idiomatic. Just "minimum" or "minimum necessary" could also work and would be a little less harsh.

In the morning I attended to my German lection, thasson. It was very boring because we just studied grammar.

I prefer to watch a tving a [TV] show and analyze ing sentences.

Some native speakers would also be fine with "tv."