Where should I stand against the 30K compensation proposed to me in view of our community property assets cited below?

We are located in New Jersey and my spouse (of 18 years) and I are divorcing amiably and since we don't have any real estate (we live in an Apt.) and only one kid (14 years old) we decided to proceed by mean of an agreement which will include a monetary compensation for me since she is the main bread winner. I am 56 years old and my yearly income is about 8 to 12K (Substitute teacher); needless to say that I face employability issues. My spouse is 51 years old; she is a teacher and makes about 53K yearly. We were married in May 1996. The only community property assets consist of her pension plan ( with TEACHER's PENSION and ANNUITY FUND: TPAF) and a retirement account (with TIAA-CREFF). Her TPAF statement of 6/30/2012 states that if she retires at the assumed age of 60, she will collect an estimated monthly allowance of $1,443. For the TIAA-CREFF asset, I am not sure if the balance growth of her portfolio corresponding to our 18 years of Marriage (about $10,000) is to be considered as community property in New JerseyJ? My spouse's attorney submitted to my signature a "Property Settlement Agreement" document with a monetary of $30,000 in a lump sum to settle all property rights. The document, also, has me waive any and all rights of Alimony or maintenance and has her waive and (discharge me) any rights to claim child support. It also states that my spouse will be the only one responsible for medical coverage of our daughter and her post-secondary educational expenses. We don't have any custody issue. I need legal advice regarding the amount of the monetary compensation submitted for my consideration. I can't obviously afford a QDRO nor are they (my spouse and her attorney) suggesting it. My reading of the situation is that her Attorney came up with that number based on his own judgment and the interest of his client. Thank you for your assistance.