Here are the corrections for each sentence:

1. My best friend and I went to **the** same school.
- Correction: Add "the" before "same school."

2. This fridge isn’t as good as **my** old one.
- Correction: Change "mine" to "my."

3. Spending time on computers isn’t as entertaining **as** spending time with friends.
- Correction: Change "than" to "as."

4. She does not **feel** as famous as she was before.
- Correction: Add "feel" (or "seem") to clarify the comparison.

5. This camera is **not** as better as it was before.
- Correction: Change "as better" to "as good," or simply "better."

Final sentences after corrections:

1. My best friend and I went to **the** same school.
2. This fridge isn’t as good as **my** old one.
3. Spending time on computers isn’t as entertaining **as** spending time with friends.
4. She does not **feel** as famous as she was before.
5. This camera is **not** as good as it was before.