Hello, and welcome to the forums!
Well, before we can really get into detail, here are a few pieces of information that would be useful.
- Your ability score generation - are you rolling, or using point buy, and what are the details (# of points, or outcomes of your rolls)
- What books are allowed for use. (for example, unearthed arcana's level adjustment buyoff would be great for you)
- Any details of the rest of the party's composition