And, if you are still looking for answers to various technical questions that have come up for you (that is, assuming you are preparing your taxes yourself), that's perfectly normal too, The US tax code is such a mess of arcane rules and incentives, there are of course people who make a living helping people and corporations understand what to do about taxes.
But, let me offer a simple resource that you may not have thought of: the IRS. Many people don't want to go to the source for information. But, some time a few years ago, the IRS actually figured out that their website could be an excellent resource for us normal folks as we try to prepare our taxes. If you go on to the IRS.gov web site, and run searches about your various questions, you'll be surprised at how much information is there. And I find the writing on the IRS site to be very user friendly and readable (don't be afraid, you'll be able to go onto their website and they'll never know you were there...).
So, hang in there. Pay attention to deadlines. As you seek answers, the IRS website is an excellent resource to turn to.