No. Allah, The Most Merciful never lets His servants under the effect of negative imprecations of others. Be sure that Allah is The Best Protector and The Best Supporter for the pious people. We need to seek His help to keep us on the right path, and by sincere supplication and by reciting Quranic verses like Ayatul Kursi and Sura Al-Falaq and Sura An-Naas, and by paying Sadaqa. Even if the whole world has negative imprecation on you, no harm will reach you as far as you are pious and Allah is your Protector.
Wassalam.