Depression.

It is often said that depression destroys one's motivation and will.

This sentence is grammatically correct, but I think that depression is much more serious than destroying someone's motivation and will. It's a mental illness that can make the person feel hopeless about their life. People think that they are a burden to people that they care about, and they may have suicidal thoughts. Usually, sleeping problems are common in people with depression. Eating too much or too little are also common with depressed people.

Whilen you are depressed, you do not really want to do anything./When you have depression, you may find it difficult to do anything. (For some, it may become excruciating to complete basic tasks, such as washing the dishes.)

Depression manifests differently in people, but one of the signs of depression is the inability to do anything. That depends on the severity of depression with each person. Depression can certainly make it nearly impossible to complete any tasks, but in other cases, it doesn't affect people's abilities to do those chores.

You do not enjoy the things you did earlierusually enjoy.

Depression can cause people to not enjoy activities that they previously enjoyed. That being said, these symptoms usually last for more than two weeks.

You domay not want to do anything in life.

I would suggest not making a definitive statement with this because this isn't the case for all depressed people.

Some experts saystate that in order to get rid lto manage depression/symptoms of depression, you need to make an effort even if you do not want to do so.

You cannot get rid of depression. You can manage the symptoms of depression with psychotherapy and/or medication, but you cannot get rid of it completely (at least for now). Also, which experts are you referring to for this quote?

Some experts says that in order to get rid lof depression, you need to make effort even you do want to do so.

Depression.

It is often said that depression destroys your motivation and will.

Whilen you are depressed, you do not really want to do anything.

You do notstop enjoying the things you diloved earlier.

You do not want to doaim for anything in life.

I changed your sentence because it was used two sentences ago.

Some experts says that in order to get rid lfwork on your depression, you need to make effortforce yourself to do things even if you don't want to do so.

You need to force yourself to get up fromout of bed.