It is written in the books (but i don't know that it is certain) that we can't start the sentence with 'to have +v3'.
.To have smoked is dangerous. (Is it incorret?)
.Having smoked is dangeours. (Is is correct?)
1. Always capitalise the word "I" (first person singular)
2. I don't know why you have used a full stop before the first word of your two examples. Perhaps you meant to number them, as I have done here. If so, you need to put a space after the full stop (as you do after almost all full stops.)
Aside: I think some word-processing systems interpret a sentence immediately following a full stop as an element of a bulleted list, and people who use such support get into bad habits. Then people with no such support do the same, and the bad practice spreads.