At the end of the day to learn a language is not that difficult. Once you have learnt a language it’s easier to learn another language as they all share parts that are similar. As an example, integer, double, char are all types of variable that you can find in most languages.
Of course, what I am saying is very general and there will always be exceptions, but my point is, if you learn a language and then decide it’s not right for you it is not the end of the world, you can change, but if you never learn because you can’t decide then you will never start.
Now, if that is not helpful to you because it’s very general and vague, try this.
Pick something you have access to. It should be something where there are lots of examples out there, so you are more likely to get help. Therefore, do not pick the newest hottest thing to hit the scene otherwise you will be trail blazing which as a beginner is not going to help you.
I started with Basic, followed by Pascal and then C. Finally, I settled on Java because of its similarity to C++ without the memory management challenges. At the time Java was freely available and contained lots of tools and libraries to do the sort of things I was interested in. I was also involved in some Enterprise Java Bean work which helped sway me.
The main point is, pick something that works for you now, you can always change later.