if you are interested in IPA then go ahead, but I think that learning IPA for pronouncing English would be a lot of extra work. It exists more for standardization and less for learning languages.
in English the consonants/consonant combinations are generally pronounced the same. the only differences that I can think of is that unaspirared and aspirated "t, c, k, and p" are not marked, however, we do not distinguish between words this way, and mixing it up would not hinder communication.
vowels are more tricky with irregularities, so you can use dictionary pronunciation and audio to help with that, but I think IPA would be overkill here as well. it may also help to listen to audio recordings. most vowel irregularities happen only in the most common words