Taking things to extremes is not a realistic way to handle life, and yes, I am trying to help. I haven't condemned you at all, and everything I've said has been based on my own life and how I've recovered from a long period of depression.
We've never said that its wrong to seek help. It is, however, unwise and unhealthy to become completely dependent on others for a large part of your self-esteem. To give you an analogy, its not wrong to use a hammer as a tool to drive in a nail; it is unhealthy when you begin to feel that the same hammer is something to depend on for /everything/. I hope, at least, to never have to eat a hammer-made cake
Likewise, it can be very useful to seek help from a professional because they are specialized in the knowledge that may be useful. Its like if you are seeking to learn math - it is probably more useful to seek to learn from a teacher, because speaking as a teacher myself, we have training and experience on how to convey information in the speediest and hopefully most efficient manner. Could you also look for a friend to learn math from? Of course, to an extent, but it'll be less fast, and possibly quite a bit more error prone.
Ultimately, yes, we seek assistance from others but we need to build our mental fortitude ourselves. The analogy I've most used for myself, mentally, is that of a fortress. My mind is my fortress, a strength designed to endure the shocks of the outside world. What builds the fortress are many things, including friends but they are only part of a whole. In the end, it comes down to my mind, my fortress, and my bastion of serenity and peace.
Once you have this fortress, you can extend your reserves and abilities to help people. As it is now, you're often hurting the people you care about, and yes, yourself. Do you really want that? Wouldn't you rather to be able to consistently help others and yourself?