Words with the same meaning: 너무/아주/참/매우/굉장히/엄청/진짜/정말/많이/완전/몹시/전혀/무조건
When I read them in korean sentences, i can understand what they mean but when i actually make the sentences myself, i am confused which one should i use. i normally just use 진짜 so i can express like 진짜 너무 귀엽다 as "You are so legitly cute" or something. This has always been a problem to me. I can understand Korean when i read/sometimes hear them but when i speak or write it myself, there are some terms i do not know what to use as there are so many words that mean the same.

My problem is WHEN AND HOW to use each word and on WHAT KIND OF SITUATION to use them.

너무, 아주, 참, 매우, 굉장히, 엄청, 진짜, 정말, 많이, 완전

PS: especially 굉장히 as i hear korean all the time use this. and i always ask myself, why use 굉장히 why not 너무 or 완전 or this and that. So this is how my problem starts

Question

Words with the same meaning: 너무/아주/참/매우/굉장히/엄청/진짜/정말/많이/완전/몹시/전혀/무조건
When I read them in korean sentences, i can understand what they mean but when i actually make the sentences myself, i am confused which one should i use. i normally just use 진짜 so i can express like 진짜 너무 귀엽다 as "You are so legitly cute" or something. This has always been a problem to me. I can understand Korean when i read/sometimes hear them but when i speak or write it myself, there are some terms i do not know what to use as there are so many words that mean the same.

My problem is WHEN AND HOW to use each word and on WHAT KIND OF SITUATION to use them.

너무, 아주, 참, 매우, 굉장히, 엄청, 진짜, 정말, 많이, 완전

PS: especially 굉장히 as i hear korean all the time use this. and i always ask myself, why use 굉장히 why not 너무 or 완전 or this and that. So this is how my problem starts >

Answer

My understanding is that each of them have different level of "very"; if that makes sense?

Based on my interpretation, I've arranged them as follows:
참, 아주, 많이, 진짜, 정말, 너무, 엄청, 완전, 굉장히, 매우

I could be wrong as I'm not a native speaker, and I myself am still learning (^_^')

However, I believe 전혀 has a completely different meaning.  
전혀 - "not at all"
For example: 
A: "운동을 많이 하세요?"  (Do you workout?)
B: "전혀" (Not at all)

These are just my understanding.  Feel free to point out my mistakes.  I find this to be a really great discussion corner :)

Answer

I have the same problem! >_<

Answer

Just that we are there, how about adding one to the fun?

무지 is used very often as well

Once a korean person told me that 몹시 is a pedantic word, used more often in books than in real conversation.

I have observed that 전혀 pairs up more naturally with negative words.  I am not sure it can be used with positive context.

무조건 means absolutely, without condition (in fact, that's the literal meaning from hanja) so I think its meaning is apart from your pack.  Another meaning for that (which I've verified from naver) could be "recklessly, acting without caution".  Still the meaning is different from the rest of your set.