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Spell casting and rituals are very personal, and must be very carefully thought about before proceeding. Any spells you find should not be used as written; because they were somebody elses spells. what you can do is to use what you find as a template or a guide to write your own, in your own words and with your own feelings and energy. I would say that you should use your own language as that is what is most natural to you, and you will feel more comfortable and relaxed in your spell casting. Furthermore, as said above, don't wait for results. Cast your spell, finish your ritual then DO NOT think about it anymore. If any doubt creeps in, then that will ruin the spell.
Depending on what you are trying to achieve you may have to do it a few times, but if the Godess and God are willing then your spell will work. Remember the power comes from within YOU not from the words. Be positive!
One more thing I should emphasise, If you are indeed new in your path, then you shouldn't really be casting spells so early in you way. There is a lot to learn, a lot to understand, and you must realise that things can go wrong. Things could come back and bite you in the ass.