Well I believe in one god (Allah). It's just hard when your brought up in a world with every distraction placed before me. When our sole reason is to live for him. That's what I strive for.
Assalaam alaikum warhamatullahi wabarkatuhu and welcome to IB forum bro Joseph (that's Yusuf in Arabic by the way, a very well loved and honoured name, also afforded to Prophet Joseph / Yusuf (peace be upon him)

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Bro, you got interested in Islam at the age of 16, WOW, that's young! How did you get interested in it?
At the age of 26 you believe in 1 God, not 2, not 3, not 300, not 3000.... but 1. Now that's something, because some people who don't get the gift of guidance, won't be able to follow the correct train of thought and deduce that there can only be 1... not none, not 2 not 3 etc. This process of deduction, is a God given gift, and most people do not know how to use it. They fail miserably and only use it for material gain. Not spiritual gain.
So, you recognise that the material world is a distraction, but has it's uses (food, water, clothing, shelter) and you value good friendships, meaningful conversation and have a will to grow spiritually in order to please God and be one of his loved.
I have a few questions bro Joseph, if I may?
1) do you believe in angels? do you believe that God created them and they do HIS will and do not fall into error (ie the concept of fallen angels is not validated in Islamic theology)
2) do you believe in the Prophets (peace be upon them), all of them?
3) do you believe in the books of God? ie: that God sent scripture to man so that he may be guided, and that the last and final book of God, is the Quran, which replaces that which comes before?
4) do you believe in Muhammad pbuh, as the last messenger and prophet, and servant of Allah?
5) Do you believe in the "day of judgement" and that each soul will be judged for its deeds?
6) Do you believe in pre-destiny and pre-knowledge? Ie: the belief that God everything is known by God and that everything has already been planned by God.
I know some of these questions may be a little heavy for you to answer in your intro thread, sorry for that. I just am too curious really? And I'd like to help i any way I can, so I thought it might be a good thing to just ask questions so I can understand you better, in sha Allah (if God wills)
Look forward to reading you soon,
Scimi