I just wanted to reply to your post. As a Catholic myself, it always saddens me when someone leaves Catholicism for some of the reasons you have outlined - because a number of them are misconceptions or outright inaccuracies. On the other hand, you also said you weren't feeling spiritually nourished in the Catholic Church. While that saddens me too, it's for the fact that you couldn't find a community that encouraged your spiritual growth. Leaving for a church where you could grow spiritually is absolutely the right thing to do - I have no problems with that at all.
Now, I don't want to insult anyone, but asking some of these big theological questions of Catholic clergy or nuns isn't necessarily going to get you good answers. The clergy have (usually) a Master's of Divinity Degree - which trains them to be ministers and gives then a foundation in Church teachings (though not necessarily the reasoning behind some of them).
Personally, I have a BA Specializing in Catholic Studies (minors in Politics and - almost done - History). I've also nearly completed my thesis that will give me an MA in Theology. In other words, I have academic training in Christianity as opposed to ministerial training - and I can tell you that a number of things you mentioned aren't accurate. If any Catholic clergy told you those things, you can tell them that they are wrong.
- The real presense of Christ in the Eucharist is somewhat complex - it relies on Aristotelian Logic and the concept of Substance and Accidents. However, that wasn't one of my major concerns with what you had been told.
- Confession (usually called Reconcilliation now) - the Priest technically confirms rather than grants forgiveness - but I'll agree that it should be worded like they do in Eastern Rite Catholic Churches where they say "You are absolved in the name..." rather than "I absolve you in the name..." It has also changed a lot - I haven't been given "Penance" in years - instead, I have spoken with a priest about some of my struggles (let's say anger, for example), and he has suggested some books that could help and other things to move me beyond my sins. I think of it now like free Christian counselling. On the other hand, I disagree that it must be mandatory - I like the Anglican (Episcopalian) view of Reconcilliation - All may, some should, none must.
- Praying to the Saints for help - if ANYONE told you that the saints can help you directly, they are 100% wrong. A saint can only pray with or for you - to "intercede" on your behalf with God. No different than if you asked me to pray with or for you. God then acts, NOT the saint. Anyone who tells you differently is wrong. Period. If you can't tell, this is one of my biggest pet peeves in terms of Catholic misconceptions.
Anyway, those were some of the main things you mentioned. While I don't expect you to return to Catholicism (and if you don't find yourself growing spiritually there, you really shouldn't) - I just wanted to clear up some of the misinformation you have been given.
I'm really not trying to sound egotistical here - but with my academic training, I actually know far more about Catholicism and Christianity on a theological standpoint than the vast majority of the priests I know.