I'm a 17 year old female and my 2001 Honda Insight manual transmission is my first car, although I have had my license and I've been driving cars for 2 years. I purchased this vehicle less than 2 months ago after driving my father's Honda odyssey for a year and loving everything about it besides the gas mileage it got and the size. After only having it for less than 2 months I'm starting to have some issues that seems pretty serious. First thing I noticed, after a week of driving the check engine light came on then went off about a day later and it's been doing that almost every week since I got the car and I don't know what this means.. Next I am only getting 42 MPG and other people seem to get MUCH better. I am missing both rear fender skirts, and I suspect that the loss of aerodynamics is the cause? I do not think it is my driving, although I have only been driving manual for less than 2 months, because I shift at 2500 RPMs and I'm very cautious and careful with driving. The first big issue I've face has been that I tried to drive to work and the clutch felt like it began to engage less than an inch from being pushed in all the way which was very unusual as it usually engages when it is halfway compressed. After driving for about 30 minutes I lost second gear completely then first and barely made it to my destination. I contacted the man I bought the car from and he told me to buy hydraulics fluid for the clutch and try that and I put it in and then pumped the clutch for a bit then had it bled and the clutch went back to normal and the car began to drive perfect again EXCEPT a harsh grinding sound whenever I shift into second gear unless I am at a COMPLETE stop. I've been to a few mechanics to see what they think and I've been given an estimate for $900 and told I need a new clutch and then an estimate of $1800 and told I need a new clutch and an entire new transmission.. The people who have given me these estimates are not very trustworthy mechanics. I have read people on here saying it is a synchro issue? I am not sure what the problem is but can anyone help me out? I do not know too much about cars as I am a 17 year old girl.. but I cannot afford an $1800 fix but I do a lot of driving and made an investment in this new car I was very excited about and I want it to be running correctly as I am not an extremely experienced driver and I don't want to be in danger.