I'm currently studying in my third year of ba Bachelor's (degree) in computer science.

Me too!

My first year was really hard because I never made myself a study routine, so I failed two signaturclasses oin my first semester.

Maybe you meant a core/required class or something?

I was really stressed, but my family supported me and I couldwas able to recover atfor the second one.

Nowadays, I finally feel good about myself and I know my own limits, so I've just decided to take my studies at my own pace.

I've even madegained new hobbies such as playing guitar, and takeing my time with things I like.

My experience as a Uuniversity Sstudent

El tuyo es gramatical pero está escrito con mayúsculas inconsistes. Es aceptable escribir con mayúscula solamente la primera palabra, como hice. Si quieres que se vea como un título formal, debería ser "My Experience as a University Student"

I'm currently studying my third year of bachelor college studying computer science.

My first year was really hard because I never made myself a study routine, so I failed two signaturclasses oin my first semester.

Adiviné que hablabas de dos clases, pero es posible que hablaras de exámenes ("exams").

I was really stressed, but my family supported me and I could recover at the second onenext semester.

Nowadays, I finally feel good about myself and I know my own limits, so I justhave decided to take my studies at my own pace.

I even madetook up new hobbies such as playing the guitar, and takeI spend my time with things I like.

También puedes decir: "I even started new hobbies"
Se dice "I take my time" cuando se hace algo lentamente y con cuidado.