Lately, I don't have a topic've had writer's block. Lately, I've had writer's block.

I think this is more native-sounding. Writer's block is the inability for someone to write due to a lack of inspiration or courage.

Lately I don't have a topic.Difficulties of finding a topic to write about in English Difficulties of finding a topic to write about in English

Usually, titles show what you write about in your body paragraph(s). To see some ideas on what to write about, there are writing prompts from the writing prompts section.

I have been wroteiting an English diary sincefor one month. I have been writing an English diary for one month.

I have been wrote a English diary sinceiting a diary in English for one month. I have been writing a diary in English for one month.

Wrote does not work with "have been".

I have been wroteiting an English diary since one month ago. I have been writing an English diary since one month ago.

I have been wrote a English diary sinceiting diary entries in English for one month. I have been writing diary entries in English for one month.

In English, we don't usually use "since" to indicate the duration of doing a certain task. This exists in languages like French and German, but it doesn't sound natural in English.

LateRecently, I don't have a topicam unable to come up with a topic to write about. Recently, I am unable to come up with a topic to write about.

Rather than copying the title exactly, I think you can expand the sentence like this. This can also serve as an alternative correction to the title of this post.

Lately I don't havecouldn’t come up with a topic. Lately I couldn’t come up with a topic.

Lately, I don't have a topic to write about. Lately, I don't have a topic to write about.

Lately my daily is same meanys are all the same... Lately my days are all the same...

Lately my daily is same mean... Lately my daily is same mean...

I am unsure what you mean here. I would also not repeat the use of "lately" or other adverbs as it can be repetitive. The reader will know at this point what timeframe this is happening to you in.

Lately, my daily is same meanentries all have the same contents... Lately, my daily entries all have the same contents...

Lately, my daily is same mean..entries (kind of) sound the same. Lately, my entries (kind of) sound the same.

It's okay to take breaks and not write every single day.

What should I do.? What should I do?

What should I do.? What should I do?

The question mark is used for asking a question. Unlike in some languages, such as Japanese, it is mandatory to use a question mark when you want to ask a question as otherwise it will sound strange in the reader's head.

What should I do.? What should I do?

What should I do.? What should I do?

Hou arew so you solutionve this problem.? How so you solve this problem?

Hou areWhat is your solution to this problem.? What is your solution to this problem?

Again, you need to use a question mark here. I assume "Hou" is meant to be "How" but "How" is not the correct adverb in this sentence, it is "What".

HouWhat are your solutions to this problem.? What are your solutions to this problem?

Hou are you solutionw do you tackle this problem.? How do you tackle this problem?

I would write journal entries on what I'm listening to in my target languages like German and Spanish. You can also write about past memories in English.