Self Harm and Suicidal thoughts and ideation

ex self harmer here,(been clean for 18 months and 3 days, which is my record so far!), in the past 2 / 3 years, i've had a few really bad mental health experiences due to personal reasons, and dduring those difficult times, i was really starting to Self harm and thinking abiut suicide (with the suicide, it was when i was in really bad burnout and when was in a major meltdown i thought, why not  just end it all,  it got to the extent that i thought of about 7 or 8 ways of ending it all.) is this "normal" and why do i / we feel like this?