It's hard for me

Welcome to the forum. It is common for our addiction to escalate into things that scare us. We can become desensitized to our partner and lose the excitement of being with them. So the desire to look elsewhere for that elusive 'something' grows inside of us. The truth is what we are craving does not exist in real life. But our illness makes us believe that it's possible to find it. Don't believe the lies your addiction is feeding you.

Here are somethings to do to get started so that your brain starts to heal.
Read about addiction here: https://www.NoFap.com/porn-addiction/
Read about rebooting here: https://www.NoFap.com/rebooting/
Watch this video about porn addiction: www.youtube.com/watch?v=wSF82AwSDiU
Find or request an accountability partner in the Accountability Partners folder, your boyfriend should not be your AP.
Start a journal in the Women in Reboot folder and read some of the other journal entries.
Educate yourself at: www.yourbrainonporn.com. The 'Rebooting' folder has many good articles.
Consider reading books on the subject. 'The Addictive Personality - Understanding the Addictive Process and Compulsive Behavior' by Craig Nakken was a good short book on addiction. Also, 'The Porn Trap' by Wendy Maltz was beneficial for me.
Identify your physical, emotional, and environmental triggers. Avoid or address them if possible.
Consider talking to your boyfriend about your problem. Addiction thrives in secrecy.
Think about abstaining from sex for a period of time.
If you are still struggling and want something more structured you can try the NoFap Academy or Recovery Nation.

I hope this gives you somewhere to start.