No, let me rephrase it so it is more clear: the FEELINGS are perfectly normal and one shouldn't try to control the THOUGHTS. It's the REACTION to those thoughts that counts.
This is at the heart of things like CBT in Psychology. It is related to Mindfulness. I would highly recommend adding in some mindfulness reading to your various philosophy reading.
Basically the goal here is to NOT control the thoughts but control how we react to those thoughts.
I am free to think whatever I want about you but I'm not free to harm you in some way. I can hate you incandescently but if I am calm and respond to you rationally and without that hate manifesting then I'm doing well. But if I seek to NOT feel something, well you are familiar with the "Don't think of an Elephant" type experiments, so you presumably get my point.
So you finally concede there is more to a human life than factual or formal knowledge.
There is the normative knowledge we all need to function as human beings.
Normative knowledge: child abuse is always wrong, cold blooded murder is always wrong, all other things being equal beneficence is better then avarice, all other things being equal pathological lying is always wrong
Factual knowledge: Iraq is north of the equator.
Formal knowledge: the square root of negative one is an imaginary number.
On a day to day basis in real life, you need normative knowledge more than you need the formal knowledge of math and experimental science.