2002 Honda Civic My car is overheating

My vehicle began running hot out of nowhere yesterday evening. I had to pull over because the gauge went all the way up to H. I sat for about 10 mins and tried to crank it acted like it didn't wanna crank up once it did I began traveling again. Not even 5 mind later it ran hot again. I put water into it because it was low thinking that is what it was and began traveling again. It still ran hot again and I had a difficult time trying to crank it back up. Also I realized that my heat stopped working and when I let the hood up to the car the motor was making a strange noise. I thought the car was going to cut off. I'm just really curious to know what made my car do this out of nowhere it has been working perfectly fine. I just purchased this car a week ago. I got someone to check my oil that's perfectly fine. Could you please give me some answers. Thanks.