Training for a Half Marathon

I recently started to train for a Half-Marathon that will be ran in April. The longest I have ever run  consistently in my live at one time has been 6 miles. So, 13.1 miles will be a very difficult challenge. My workout consists of 3 days a week of training (Monday, Wednesday and Friday).

Week 1 

Monday- 4x400

Wednesday-3 miles

Friday- 6 miles

Week 2

Monday- 4x800

Wednesday-4 miles

Friday- 8 miles

Week 3 

Monday- 3x1600

Wednesday-5 miles

Friday- 10 miles

Week 4 

Monday- 6x400

Wednesday-6 miles

Friday- 6 miles

Week 5 

Monday- 3x1600

Wednesday-4 miles

Friday- 10 miles

Week 6 

Monday- 4x800

Wednesday-8 miles

Friday- 8 miles

Week 7 

Monday- 6x400

Wednesday-6 miles

Friday- 10 miles

Week 8 

Monday- 4x1600

Wednesday-8 miles

Friday- 12 miles

Week 9 

Monday- 3x800

Wednesday-3 miles

Friday- 6 miles

Week 10 

Monday- 4x400

Wednesday-2 miles

Friday- Half Marathon

If anyone has any ideas, thoughts or suggestions, please let me know.