Always remember dear Femme,
Ameerul mu'minin Abi Hafsa Umar ibnil khattab radhiallaahu anhu said he heard from our prophet Muhammad Sallallaahu 'alaihi wasallam told,
"Actions are (judged) by motives (niyyah), so each man will have what he intended. Thus, he whose migration (hijrah) was to Allah and His Messenger, his migration is to Allah and His Messenger; but he whose migration was for some worldly thing he might gain, or for a wife he might marry, his migration is to that for which he migrated."
Sahih Muslim: Book on Government
In book reference: book 33; hadith 222
So, even when you are trying to recite Quran from transliteration, your intention may be counted.
But reciting from Transliteration might go pronouncing wrongly which, in worst case, might result in opposite meaning of what it was said in the original text.
So, you need to re-check with a scholar of what you learnt from a transliteration copy of Quran.
But remember, the rewards of reciting quran from the holy books seeing the arabic letters is greater than reciting by not seeing (I mean reciting from memory).
But there is another factor which we also cannot deny.
Hazrat Anas bin Malik Radhiallaahu ta'ala anhu said that our prophet Hazrat Muhammad Sallallaahu 'alaihi wasallam said
"Seeking knowledge is a duty upon every Muslim, and he who imparts knowledge to those who do not deserve it, is like one who puts a necklace of jewels, pearls and gold around the neck of swines"
Sunan Ibn Majah: Book of Sunnah
Arabic Reference: Book 1, Hadith 229
So, even though you cannot recite Quran in arabic or you are weak in reciting Quran, you need to keep trying to learn it from Learned person. You have to keep learning to recite Quran reasonably well so that you may pass the satisfaction of the scholars you might be learnt from.
And Allaah ta'ala knows best.