Being Christian is simple, but not easy. It's easy and simple to get saved; all you have to do is believe that Jesus died on the cross for your sins, confess that you're a sinner, and accept Jesus into your heart. Many people think that is the end and they don't have to do anything after that, but that's not true. After being saved you have to let Christ live through you- and not by "acting holy" in front of people. There is a difference between actually living holy, and acting holy in front of others.
The reason I say that being a Christian is not always easy is because there will always be trials; you're either entering a storm, in the midst of a storm, or coming out of a storm. These storms can be big or small, but let me tell you something- God is always present with you through it all, it's just a matter of you having full trust and faith in God that He will guide you through the storm. All you need to do, no matter what stage of the storm you are in, is to have faith and trust in God.