You can do a lot of things ,

Firstly you stop using the words like Muslim and terrorist together, the word terrorist is pretty much self-explanatory
noun (plural terrorists)
A person, group, or organization that uses violent action, or the threat of violent action, to further political goals. See not religious," political" goals.
Same with islamophobia, these words are overused on the internet without people understanding them like the word inception(most people on the internet think it means a thing within a thing within a thing, its not that's recursion) also like hashtag#, people started using hashtag everywhere, without knowing it's use.

Second of all you can learn a little about different religions , but search using keywords like "is Islam a religion of Peace", " what are the basic teachings of Islam" do not start by searching " is the prophet of Islam a pedophile" the keywords you use directly impact the results. So always look for legitimate information.

Next you can learn a little about psychology and learn why people do what they do. Now I'm not a expert on psychology, all I know about psychology comes from American TV shows(like criminal minds, law and order etc), one can question their accuracy and methods but its hard to miss the point. People do henious crimes coz of certain things that can scientifically explained. Regarding our current situation you can look into how Cults are formed and their inner working and ideology. A cult leader is some with leadership qualities, has brainwashing skills, Is very charming and motivational. The leaders just brainwash psycopaths, orphans, impressionable kids.
Osama bin laden never wore a suicide west, he just coordinated and planned the attacks, his followers follow him blindly and there are reasons for that, well documented and researchered for you to read. Do you think that ISIS leaders actually go to ground zero to fight ?? They probably sit inside bunkers surrounded by all the things "haram" in Islam.

Next thing you can do is start questioning...
Question how such a remote and cut off place is getting hi-tech western guns and ammunitions.
How are these guys getting funded.
How come Afghanistan is the largest producer of heroin, how they can snuggle heroin in US(biggest consumer of heroin) without the help of americans.
Then you can ask why do these terrorist plan for years to coordinate something like 9/11 when they can burn oil wells in their own country and actually cripple western countries in a matter of days.

Don't sleep on it, educate yourself on how modern society works , how money and power are so important and root cause of all evil.
Not religion, Islam was founded in the middle East to fight evil like all other religions.
All religions are practically the same ..they all preach the same things with minute differces.

Just educate yourself more on current world affairs and remember there's nothing wrong with any religion or country.
It's all political propaganda for power and money.
Every such act is based on profit of the cult group and for the people funding them.

You can also help human beings who are suffering, its the best thing you can do, help anyone and everyone it's the only things in your control , for things out of your control you cannot do anything, but you can always educate yourself and fight ignorance.

PS:English is not my first language.
PS:I'm a kid so please refrain from blunt/harsh comments.