I'm A PCB Student Currently In 12th...i want To Be An HR ...what Should I Do from Next Year Onwards?...should I Og with Psychology In Arts?

You can do BA Hons. in Psychology and then you can go for MBA. For MBA, You should have cleared any one entrance test (such as CAT/MAT/XAT/NMAT/CMAT/GMAT/

NEST ) accepted by various colleges and you should also have minimum of 45% to 55% in your bachelors(any stream) for admission in the same. Admission in MBA is done via two modes- either through an entrance exam or direct admission which is based on merit basis or management quota basis.
MBA Specialization, which are as follows:Oil and Gas Management
Hospital and Healthcare Management,
Supply Chain and Logistics,
Tourism and Hospitality,
Financial Markets,
Finance,
Marketing,
Human Resources,
Business ,Operations,
Information Technology,
Retail Management,
Strategy,
Entrepreneurship,
Business Analytics,
E-Commerce,
Banking and Financial Services,
Agri - Business Management.
Some good institutes are :IIMs
Xavier's Labour Relations Institute, Jamshedpur
Indian School of Business ,Hyderabad,
Lovely Professional University, Punjab
K.J. Somaiya Institute of Management Studies and Research Mumbai
Lal Bahadur Shastri Institute of Management Delhi
Management Development Institute (MDI), Gurgaon
Narsee Monjee Institute of Management Studies, Mumbai

If you have already planned to do be an HR then you should do BBA and Then MBA HR. Top notch institutes : IIM-Indore, Shri Narsee Monjee College of Commerce and Economics, K. J Somaiya Mumbai, Lovely Professional University, Punjab, Delhi University, Christ University, Bangalore, M S Ramaiah University, Bangalore, Madras Christian College, Chennai, Mount Carmel College, Bangalore,Mumbai, Wilson College, Mumbai, Lala Lajpat Rai College of Communication & Economics, Mumbai.