"习惯地记日记" can be translated into English as "habitually keep a diary" or "make it a habit to keep a diary".
Here are examples of how these phrases can be used in sentences:
1、 She habitually keeps a diary to record her daily thoughts and experiences.
（她习惯性地记日记，以记录她每天的想法和经历。）
2、 He has made it a habit to keep a diary every night before going to bed.
（他已经养成了每晚睡前记日记的习惯。）