Jesus said, "Come to me, all who are weary and heavy-laden, and I will give you rest." It is not possible that you are one of the people that God doesn't want because he offers himself freely to all.
Are you tired of this world? Does the daily strain and toil of life wear on you? I trust you see that it is a fact that there really is no hope in this world alone. We will all die one day and if there is nothing then eventually no one will remember any of us after several generations. What is the point then if it comes to life just being unbearable each day? What is the point of going on?
Jesus is the only answer. He is the only one who can provide us a life without sin--eventually a life where there is no sin at all but even now in this life some of that sinfulness is taken away. What converted me was reading the Westminster Confessions of Faith. A lot of people on here do not like it. If not that, then I hope you would try to take a look at the part of the Larger Catechism where it talks about the 10 commandments. It is a beautiful depiction of the love we should have for God and for each other. If everyone treated everyone else according to all that is detailed in those questions concerning the Ten Commandments, much of the curse of this world would be gone. We would only have to deal with the curse of natural disasters and even that would be much alleviated since everyone would be caring for his or her neighbor and putting their interests before their own.
A few years ago, I lost the love of my life, my husband, unexpectedly and tragically. If I did not have the faith which the Lord has given me, I would definitely not be here. I would have killed myself. Things like that I just don't know how people go through if they do not believe in the Biblical God and his promise of a better world than this one. This world is just way too difficult for me to get through without Jesus carrying me through it.
Another book I just loved so much since it made me consider the character of our Heavenly Father in a way that I did not before is "A Layman Looks at the Lord's Prayer". I read this a few months ago and it really lifted my spirits up to God; I felt my depression lessen quite a bit.
There's nothing I can say which will make you believe. For me it was reading the Westminster Confessions and it just hit me how much sense the Bible made. I don't think that is very common. After that I went back through the Bible and read it again and it actually was in the book of Matthew where I met my Lord and Saviour Jesus and that is when I was saved. I was just struck by his love and sacrifice and as I study the Bible, especially the Gospels and especially the Gospel of John (Jesus is portrayed so wonderfully in that book), my worship of God grows more and more and I realize just how incredible and beautiful and magnificent and glorious and compassionate and perfect and everything I could ever want is what Jesus is. I hope you will find him. He is the best thing that will ever happen to you because you will be a resident of his eternal kingdom where there will be no more sorrow and pain and sadness. This life will still be tough (and very possibly get tougher after believing upon the Lord; it sure was that way for me), but you will have meaning and purpose in your life in service to the Living God.
Good word sister, can't wait to meet you and Jen!!! And of course, I am so sorry for such a tragic unexpected loss of your husband.