Is it difficult to Swedish

Answer 1

No. Depending on what you want to study. Some programs/courses are more popular then others, like to become a doctor.

If you have the grades required, that's all you need. And the grades required are based on how many applicants there are.

So, the fewer applicants the better chances.

Answer 2

It is easier to speak Swedish if you are accustomed to similar languages such as Norwegian, German, Icelandic or Danish. To be able to speak or read the language, it is just the same as for every language - start with the basic learning of words and basic grammar, after which one is able to move on from there.