Concentrating on one language first is better choice. When you get familiar with it , you can realize what it really focuses on. Then do whatever you want. Personally recommend Java. It is good to build your foundatmental concepts.
learning two things at once is too hard and might end up with you forgetting.
If you do java, you will be able to easily intergrate into c++ and other such languages
if you do python, it would be easier in the beginning and more wanted in the working world.
Stick to any of the two and be the best you can be👍
All languages can be hard to learn but more easier languages are those that you feel comfortable with since you may know the language inside out (html for me) so I suggest that you try all of the languages and see which one suits you the best
but this is just my opinion so you should try both and then decide