Question: "I would like to know about my purpose in this world. It seems that every time I try to pursue something it all falls through."
As discussed at length in Kabbalistic teachings, the ultimate purpose of the soul is fulfilled during the time it spends in this physical world, making this world a dwelling place for G-d by finding, revealing , and expressing G-dliness in everyday life by the fulfillment of G-d’s precepts and living from your truth.
However, for our actions in this world to have true significance, they must be the product of our free choice. Hence this crucial requirement in our lives is enacted under conditions of almost total spiritual blackout and in a world in which the divine reality is hidden, in which our purpose in life is not obvious, and evil often prevails over good. Under such circumstances, our G-dly actions , acts of goodness and kindness will be truly our choice and achievement.
There is so much more to say about this, but these few words can help you understand that challenges, trials, and tribulations are Divine imprinted characteristics of life. They are necessary for the fulfillment of G-d’s plan. As you write “every time I think am getting ahead something always seems to come up to keep me from obtaining” does not necessarily mean you are not going in the right direction. On the contrary, it is often the case when you try to do things right, expressing your truth and integrity, that all types of opposition come up to test you and challenge your choices.
The above is general and is meant to provide you some background for further discussion. I would like to end with a blessing that G-d should grant you the strength and wisdom to make the right choices and to figure out your life goals with clarity and joy. I look forward to hearing good news from you.